315130901 has 2 divisors, whose sum is σ = 315130902. Its totient is φ = 315130900.

The previous prime is 315130891. The next prime is 315130913. The reversal of 315130901 is 109031513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163200625 + 151930276 = 12775^2 + 12326^2 .

It is a cyclic number.

It is not a de Polignac number, because 315130901 - 2²⁶ = 248022037 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315120901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157565450 + 157565451.

It is an arithmetic number, because the mean of its divisors is an integer number (157565451).

Almost surely, 2^315130901 is an apocalyptic number.

It is an amenable number.

315130901 is a deficient number, since it is larger than the sum of its proper divisors (1).

315130901 is an equidigital number, since it uses as much as digits as its factorization.

315130901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 405, while the sum is 23.

The square root of 315130901 is about 17751.9266841659. The cubic root of 315130901 is about 680.5034485389.

The spelling of 315130901 in words is "three hundred fifteen million, one hundred thirty thousand, nine hundred one".