80881312 has 12 divisors (see below), whose sum is σ = 159235146. Its totient is φ = 40440640.

The previous prime is 80881301. The next prime is 80881321. The reversal of 80881312 is 21318808.

It can be written as a sum of positive squares in only one way, i.e., 77510416 + 3370896 = 8804^2 + 1836^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1263739 + ... + 1263802.

Almost surely, 2^80881312 is an apocalyptic number.

It is an amenable number.

80881312 is a deficient number, since it is larger than the sum of its proper divisors (78353834).

80881312 is a wasteful number, since it uses less digits than its factorization.

80881312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2527551 (or 2527543 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 80881312 is about 8993.4038050118. The cubic root of 80881312 is about 432.4634372736.

The spelling of 80881312 in words is "eighty million, eight hundred eighty-one thousand, three hundred twelve".