315116969 has 2 divisors, whose sum is σ = 315116970. Its totient is φ = 315116968.

The previous prime is 315116933. The next prime is 315117037. The reversal of 315116969 is 969611513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 191462569 + 123654400 = 13837^2 + 11120^2 .

It is a cyclic number.

It is not a de Polignac number, because 315116969 - 2¹² = 315112873 is a prime.

It is a super-2 number, since 2×315116969² = 198597408303493922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (315116909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157558484 + 157558485.

It is an arithmetic number, because the mean of its divisors is an integer number (157558485).

Almost surely, 2^315116969 is an apocalyptic number.

It is an amenable number.

315116969 is a deficient number, since it is larger than the sum of its proper divisors (1).

315116969 is an equidigital number, since it uses as much as digits as its factorization.

315116969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43740, while the sum is 41.

The square root of 315116969 is about 17751.5342717186. The cubic root of 315116969 is about 680.4934199933.

The spelling of 315116969 in words is "three hundred fifteen million, one hundred sixteen thousand, nine hundred sixty-nine".