315613877 has 2 divisors, whose sum is σ = 315613878. Its totient is φ = 315613876.

The previous prime is 315613853. The next prime is 315613919. The reversal of 315613877 is 778316513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 312370276 + 3243601 = 17674^2 + 1801^2 .

It is a cyclic number.

It is not a de Polignac number, because 315613877 - 2⁶ = 315613813 is a prime.

It is a super-2 number, since 2×315613877² = 199224238709942258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315615877) 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, 157806938 + 157806939.

It is an arithmetic number, because the mean of its divisors is an integer number (157806939).

Almost surely, 2^315613877 is an apocalyptic number.

It is an amenable number.

315613877 is a deficient number, since it is larger than the sum of its proper divisors (1).

315613877 is an equidigital number, since it uses as much as digits as its factorization.

315613877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 41.

The square root of 315613877 is about 17765.5249570622. The cubic root of 315613877 is about 680.8509222058.

The spelling of 315613877 in words is "three hundred fifteen million, six hundred thirteen thousand, eight hundred seventy-seven".