132 (one hundred [and] thirty-two) is the natural number following 131 and preceding 133.

In mathematics

132 is the sixth Catalan number.^[1] It is a pronic number, the product of 11 and 12. As it has 12 divisors total, 132 is a refactorable number.

Adding all two-digit permutation subsets of 132 yields the same number:

${\displaystyle 12+13+21+23+31+32=132}$.

132 is the smallest number in decimal with this property,^[2] which is shared by 264, 396 and 35964 (see digit-reassembly number).^[3]

The number of irreducible trees with fifteen vertices is 132.^[4]

The exceptional outer automorphism of symmetric group S₆ uniquely maps vertices to factorizations and edges to partitions in the graph factors of the complete graph with six vertices (and fifteen edges) K₆, which yields 132 blocks in Steiner system S(5,6,12).

In other fields

132 is also:

• OGLE-TR-132 is a magnitude 15.72 star in the star fields of the constellation Carina
• 132 Aethra is a M-type main belt asteroid
• Sonnet 132 by William Shakespeare
• The number of columns of a line printer printing in landscape mode on 14-inch paper.
• Refers to the Yo Soy 132 movement to vote in 2012 Mexican elections against PRI candidate Enrique Peña Nieto.

See also

• The year AD 132 or 132 BC
• List of highways numbered 132

References