80191172 has 48 divisors (see below), whose sum is σ = 154452480. Its totient is φ = 36288000.

The previous prime is 80191171. The next prime is 80191187. The reversal of 80191172 is 27119108.

80191172 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

80191172 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (80191171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237788 + ... + 238124.

It is an arithmetic number, because the mean of its divisors is an integer number (3217760).

Almost surely, 2^80191172 is an apocalyptic number.

It is an amenable number.

80191172 is a deficient number, since it is larger than the sum of its proper divisors (74261308).

80191172 is a wasteful number, since it uses less digits than its factorization.

80191172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492 (or 490 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 29.

The square root of 80191172 is about 8954.9523728493. The cubic root of 80191172 is about 431.2298879649.

The spelling of 80191172 in words is "eighty million, one hundred ninety-one thousand, one hundred seventy-two".