80531312 has 20 divisors (see below), whose sum is σ = 165208176. Its totient is φ = 37896960.

The previous prime is 80531299. The next prime is 80531323. The reversal of 80531312 is 21313508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147764 + ... + 148307.

Almost surely, 2^80531312 is an apocalyptic number.

It is an amenable number.

80531312 is an abundant number, since it is smaller than the sum of its proper divisors (84676864).

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

80531312 is a wasteful number, since it uses less digits than its factorization.

80531312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296096 (or 296090 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 80531312 is about 8973.9240023526. The cubic root of 80531312 is about 431.8387315287.

The spelling of 80531312 in words is "eighty million, five hundred thirty-one thousand, three hundred twelve".