315736813 has 16 divisors (see below), whose sum is σ = 381667840. Its totient is φ = 255150000.

The previous prime is 315736781. The next prime is 315736819. The reversal of 315736813 is 318637513.

It is a happy number.

It is not a de Polignac number, because 315736813 - 2⁵ = 315736781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315736819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22438 + ... + 33688.

It is an arithmetic number, because the mean of its divisors is an integer number (23854240).

Almost surely, 2^315736813 is an apocalyptic number.

It is an amenable number.

315736813 is a deficient number, since it is larger than the sum of its proper divisors (65931027).

315736813 is a wasteful number, since it uses less digits than its factorization.

315736813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11488.

The product of its digits is 45360, while the sum is 37.

The square root of 315736813 is about 17768.9845798796. The cubic root of 315736813 is about 680.9393110356.

The spelling of 315736813 in words is "three hundred fifteen million, seven hundred thirty-six thousand, eight hundred thirteen".