313105972 has 12 divisors (see below), whose sum is σ = 549666180. Its totient is φ = 156058496.

The previous prime is 313105967. The next prime is 313105981. The reversal of 313105972 is 279501313.

It can be written as a sum of positive squares in 2 ways, for example, as 61058596 + 252047376 = 7814^2 + 15876^2 .

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, 122197 + ... + 124732.

It is an arithmetic number, because the mean of its divisors is an integer number (45805515).

Almost surely, 2^313105972 is an apocalyptic number.

It is an amenable number.

313105972 is a deficient number, since it is larger than the sum of its proper divisors (236560208).

313105972 is a wasteful number, since it uses less digits than its factorization.

313105972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247250 (or 247248 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 313105972 is about 17694.8007052919. The cubic root of 313105972 is about 679.0427505559.

The spelling of 313105972 in words is "three hundred thirteen million, one hundred five thousand, nine hundred seventy-two".