315670013 has 2 divisors, whose sum is σ = 315670014. Its totient is φ = 315670012.

The previous prime is 315669989. The next prime is 315670021. The reversal of 315670013 is 310076513.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 217798564 + 97871449 = 14758^2 + 9893^2 .

It is an emirp because it is prime and its reverse (310076513) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315670013 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315670813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157835006 + 157835007.

It is an arithmetic number, because the mean of its divisors is an integer number (157835007).

Almost surely, 2^315670013 is an apocalyptic number.

It is an amenable number.

315670013 is a deficient number, since it is larger than the sum of its proper divisors (1).

315670013 is an equidigital number, since it uses as much as digits as its factorization.

315670013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890, while the sum is 26.

The square root of 315670013 is about 17767.1048007265. The cubic root of 315670013 is about 680.8912858531.

The spelling of 315670013 in words is "three hundred fifteen million, six hundred seventy thousand, thirteen".