313538172 has 12 divisors (see below), whose sum is σ = 731589096. Its totient is φ = 104512720.

The previous prime is 313538153. The next prime is 313538219. The reversal of 313538172 is 271835313.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×313538172² = 196612370602203168, which contains 22 as substring.

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, 13064079 + ... + 13064102.

It is an arithmetic number, because the mean of its divisors is an integer number (60965758).

Almost surely, 2^313538172 is an apocalyptic number.

It is an amenable number.

313538172 is an abundant number, since it is smaller than the sum of its proper divisors (418050924).

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

313538172 is a wasteful number, since it uses less digits than its factorization.

313538172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26128188 (or 26128186 counting only the distinct ones).

The product of its digits is 15120, while the sum is 33.

The square root of 313538172 is about 17707.0091206844. The cubic root of 313538172 is about 679.3550488075.

The spelling of 313538172 in words is "three hundred thirteen million, five hundred thirty-eight thousand, one hundred seventy-two".