315699929 has 2 divisors, whose sum is σ = 315699930. Its totient is φ = 315699928.

The previous prime is 315699919. The next prime is 315700031. The reversal of 315699929 is 929996513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 248787529 + 66912400 = 15773^2 + 8180^2 .

It is a cyclic number.

It is not a de Polignac number, because 315699929 - 2²⁰ = 314651353 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 (315699919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157849964 + 157849965.

It is an arithmetic number, because the mean of its divisors is an integer number (157849965).

Almost surely, 2^315699929 is an apocalyptic number.

It is an amenable number.

315699929 is a deficient number, since it is larger than the sum of its proper divisors (1).

315699929 is an equidigital number, since it uses as much as digits as its factorization.

315699929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1180980, while the sum is 53.

The square root of 315699929 is about 17767.9466737156. The cubic root of 315699929 is about 680.9127944955.

The spelling of 315699929 in words is "three hundred fifteen million, six hundred ninety-nine thousand, nine hundred twenty-nine".