313246813 has 4 divisors (see below), whose sum is σ = 341723808. Its totient is φ = 284769820.

The previous prime is 313246799. The next prime is 313246819. The reversal of 313246813 is 318642313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 313246813 - 2⁵ = 313246781 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 (313246819) 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, 14238481 + ... + 14238502.

It is an arithmetic number, because the mean of its divisors is an integer number (85430952).

Almost surely, 2^313246813 is an apocalyptic number.

It is an amenable number.

313246813 is a deficient number, since it is larger than the sum of its proper divisors (28476995).

313246813 is a wasteful number, since it uses less digits than its factorization.

313246813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28476994.

The product of its digits is 10368, while the sum is 31.

The square root of 313246813 is about 17698.7799862024. The cubic root of 313246813 is about 679.1445507262.

The spelling of 313246813 in words is "three hundred thirteen million, two hundred forty-six thousand, eight hundred thirteen".