313174921 has 8 divisors (see below), whose sum is σ = 315174024. Its totient is φ = 311182080.

The previous prime is 313174913. The next prime is 313174931. The reversal of 313174921 is 129471313.

It can be written as a sum of positive squares in 4 ways, for example, as 12638025 + 300536896 = 3555^2 + 17336^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 313174921 - 2³ = 313174913 is a prime.

It is a super-2 number, since 2×313174921² = 196157062286712482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313174931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133071 + ... + 135403.

It is an arithmetic number, because the mean of its divisors is an integer number (39396753).

Almost surely, 2^313174921 is an apocalyptic number.

It is an amenable number.

313174921 is a deficient number, since it is larger than the sum of its proper divisors (1999103).

313174921 is a wasteful number, since it uses less digits than its factorization.

313174921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3131.

The product of its digits is 4536, while the sum is 31.

The square root of 313174921 is about 17696.7488822100. The cubic root of 313174921 is about 679.0925908512.

The spelling of 313174921 in words is "three hundred thirteen million, one hundred seventy-four thousand, nine hundred twenty-one".