80931132 has 18 divisors (see below), whose sum is σ = 204576008. Its totient is φ = 26977032.

The previous prime is 80931041. The next prime is 80931139. The reversal of 80931132 is 23113908.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 80931096 and 80931105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80931139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1124008 + ... + 1124079.

Almost surely, 2^80931132 is an apocalyptic number.

It is an amenable number.

80931132 is an abundant number, since it is smaller than the sum of its proper divisors (123644876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80931132 is a wasteful number, since it uses less digits than its factorization.

80931132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2248097 (or 2248092 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 80931132 is about 8996.1731864165. The cubic root of 80931132 is about 432.5522130600.

The spelling of 80931132 in words is "eighty million, nine hundred thirty-one thousand, one hundred thirty-two".