315316015309 has 2 divisors, whose sum is σ = 315316015310. Its totient is φ = 315316015308.

The previous prime is 315316015303. The next prime is 315316015403. The reversal of 315316015309 is 903510613513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 248798447209 + 66517568100 = 498797^2 + 257910^2 .

It is a cyclic number.

It is not a de Polignac number, because 315316015309 - 2⁵ = 315316015277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315316015303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157658007654 + 157658007655.

It is an arithmetic number, because the mean of its divisors is an integer number (157658007655).

Almost surely, 2^315316015309 is an apocalyptic number.

It is an amenable number.

315316015309 is a deficient number, since it is larger than the sum of its proper divisors (1).

315316015309 is an equidigital number, since it uses as much as digits as its factorization.

315316015309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36450, while the sum is 37.

The spelling of 315316015309 in words is "three hundred fifteen billion, three hundred sixteen million, fifteen thousand, three hundred nine".