313113565 has 32 divisors (see below), whose sum is σ = 405907200. Its totient is φ = 231035904.

The previous prime is 313113557. The next prime is 313113583. The reversal of 313113565 is 565311313.

It is a cyclic number.

It is not a de Polignac number, because 313113565 - 2³ = 313113557 is a prime.

It is a super-3 number, since 3×313113565³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1573336 + ... + 1573534.

It is an arithmetic number, because the mean of its divisors is an integer number (12684600).

Almost surely, 2^313113565 is an apocalyptic number.

It is an amenable number.

313113565 is a deficient number, since it is larger than the sum of its proper divisors (92793635).

313113565 is a wasteful number, since it uses less digits than its factorization.

313113565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501.

The product of its digits is 4050, while the sum is 28.

The square root of 313113565 is about 17695.0152585410. The cubic root of 313113565 is about 679.0482395706.

Adding to 313113565 its reverse (565311313), we get a palindrome (878424878).

The spelling of 313113565 in words is "three hundred thirteen million, one hundred thirteen thousand, five hundred sixty-five".