315959513 has 2 divisors, whose sum is σ = 315959514. Its totient is φ = 315959512.

The previous prime is 315959509. The next prime is 315959537.

315959513 is nontrivially palindromic in base 10.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 313042249 + 2917264 = 17693^2 + 1708^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 315959513 - 2² = 315959509 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (315959543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157979756 + 157979757.

It is an arithmetic number, because the mean of its divisors is an integer number (157979757).

Almost surely, 2^315959513 is an apocalyptic number.

It is an amenable number.

315959513 is a deficient number, since it is larger than the sum of its proper divisors (1).

315959513 is an equidigital number, since it uses as much as digits as its factorization.

315959513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 91125, while the sum is 41.

The square root of 315959513 is about 17775.2500123064. The cubic root of 315959513 is about 681.0993700244.

The spelling of 315959513 in words is "three hundred fifteen million, nine hundred fifty-nine thousand, five hundred thirteen".