ⓘ 133 (number)

133 (number)

ⓘ 133 (number)

133 is an n whose divisors excluding n itself added up divide φn. It is an octagonal number and a Harshad number. It is also a happy number.

133 is a repdigit in base 111 and base 18 77, whilst in base 20 it is a cyclic number formed from the reciprocal of the number three.

133 is a semiprime: a product of two prime numbers, namely 7 and 19. Since those prime factors are Gaussian primes, this means that 133 is a Blum integer.


1. In the military

  • USS Hawk AM-133 was a United States Navy Hawk -class minesweeper during World War II
  • Douglas C-133 Cargomaster was a United States cargo aircraft built between 1956 and 1961
  • USS Hale DD-133 was a United States Navy Wickes -class destroyer during World War I
  • USS S-28 SS-133 was a United States Navy S-class submarine during World War II
  • Frontstalag 133 was a temporary German prisoner of war camp during World War II located near Rennes, northern France
  • USNS Mission Santa Cruz T-AO-133 was a United States Navy Mission Buenaventura -class fleet oilers during World War II
  • USS Seginus AK-133 was a United States Navy Crater -class cargo ship during World War II
  • USS Toledo CA-133 was a United States Navy Baltimore -class heavy cruiser during the Korean War
  • HMAS Betano L 133 is a Balikpapan -class heavy landing craft which launched in 1972
  • USS General O. H. Ernst AP-133 was a United States Navy General G. O. Squier -class transport ship during World War II
  • USS Pillsbury DE-133 was a United States Navy Edsall -class destroyer escort during World War II
  • Naval Mobile Construction Battalion 133 is an active duty Seabee battalion originally commissioned during World War II as the 133rd Naval Construction BattalionNCB
  • USS Beckham APA-133 was a United States Navy Haskell -class attack transport during World War II
  • USS Burdo APD-133 was a United States Navy Crosley -class high speed transport during World War II
  • Caproni Ca.133 was a three-engine transport/bomber aircraft used by the Italian Regia Aeronautica from the Second Italo-Abyssinian War until World War II

2. In transportation

  • STS-133 is a Space Shuttle Endeavour contingency mission which was Discoverys 39th and final mission. The mission launched on 24 February 2011, and landed on 9 March 2011.
  • London Buses route 133 is a Transport for London contracted bus route in London
  • RATB route 133 is bus route run by RATB in Bucharest, Romania
  • The Fiat 133, also called SEAT 133, was a small rear-engine car developed in Spain between 1974 and 1979
  • The Bucker Bu 133 Jungmeister was a single-engine, single-seat biplane trainer of the Luftwaffe in the 1930s

3. In other fields

133 is also:

  • 133 AH is a year in the Islamic calendar that corresponds to 750 – 751 CE
  • 133 is the name of a David Guetta song, from the album Just a Little More Love perhaps because it is a happy number
  • PC133 is a computer memory standard defined by the JEDEC
  • 133 MHz was a common 32-bit processor CPU speed c. 1995, such as the Intel Pentium and AMD K5
  • The 2006 film" 133 Skyway” starring Terry Barnhart from Big Soul Productions Inc.
  • 133 is the police emergency telephone number in Chile
  • OMB A-133 Compliance Supplement is a guide created by the Office of Management and Budget OMB for auditing United States Federal assistance and Federal grants
  • FASB 133 is a Statements of Financial Accounting Standards No. 133, Accounting for Derivative Instruments and Hedging Activities, an accounting standard issued in 2001 by the Financial Accounting Standards Board that provides companies with the ability to measure assets and liabilities
  • In Austria, the phone number for the police.
  • Sonnet 133 by William Shakespeare
  • The Municipal District of Spirit River No. 133 is a municipal district in northwest Alberta, Canada, north of Grande Prairie
  • The nickname of Craig Jones
  • Xenon-133 is an isotope of Xenon. It is a radionuclide that is inhaled to assess pulmonary function, and to image the lungs
  • 133P/Elst-Pizarro is a body with characteristics of both asteroids and comets, a prototype of main-belt comets
  • 133 Cyrene is an S-type main belt asteroid
  • Cosmos 133 was a Soviet Soyuz programme test satellite launched from the Baikonur cosmodrome aboard a Vostok rocket in 1966
  • The atomic number of an element temporarily called Untritrium.
  • The year AD 133 or 133 BC