313137656 has 16 divisors (see below), whose sum is σ = 632297400. Its totient is φ = 144525024.

The previous prime is 313137611. The next prime is 313137659. The reversal of 313137656 is 656731313.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313137659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1505366 + ... + 1505573.

Almost surely, 2^313137656 is an apocalyptic number.

It is an amenable number.

313137656 is an abundant number, since it is smaller than the sum of its proper divisors (319159744).

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

313137656 is a wasteful number, since it uses less digits than its factorization.

313137656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3010958 (or 3010954 counting only the distinct ones).

The product of its digits is 34020, while the sum is 35.

The square root of 313137656 is about 17695.6959738802. The cubic root of 313137656 is about 679.0656544785.

Adding to 313137656 its reverse (656731313), we get a palindrome (969868969).

The spelling of 313137656 in words is "three hundred thirteen million, one hundred thirty-seven thousand, six hundred fifty-six".