132931081 has 4 divisors (see below), whose sum is σ = 132987600. Its totient is φ = 132874564.

The previous prime is 132931067. The next prime is 132931093. The reversal of 132931081 is 180139231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 180139231 = 373 ⋅482947.

It is a cyclic number.

It is not a de Polignac number, because 132931081 - 2¹¹ = 132929033 is a prime.

It is a super-2 number, since 2×132931081² = 35341344591657122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132932081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24571 + ... + 29488.

It is an arithmetic number, because the mean of its divisors is an integer number (33246900).

Almost surely, 2^132931081 is an apocalyptic number.

It is an amenable number.

132931081 is a deficient number, since it is larger than the sum of its proper divisors (56519).

132931081 is an equidigital number, since it uses as much as digits as its factorization.

132931081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56518.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 132931081 is about 11529.5741898823. The cubic root of 132931081 is about 510.3586878235.

The spelling of 132931081 in words is "one hundred thirty-two million, nine hundred thirty-one thousand, eighty-one".