316204657 has 2 divisors, whose sum is σ = 316204658. Its totient is φ = 316204656.

The previous prime is 316204601. The next prime is 316204703. The reversal of 316204657 is 756402613.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 174213601 + 141991056 = 13199^2 + 11916^2 .

It is an emirp because it is prime and its reverse (756402613) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 316204657 - 2²⁷ = 181986929 is a prime.

It is not a weakly prime, because it can be changed into another prime (316204157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158102328 + 158102329.

It is an arithmetic number, because the mean of its divisors is an integer number (158102329).

Almost surely, 2^316204657 is an apocalyptic number.

It is an amenable number.

316204657 is a deficient number, since it is larger than the sum of its proper divisors (1).

316204657 is an equidigital number, since it uses as much as digits as its factorization.

316204657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 316204657 is about 17782.1443307606. The cubic root of 316204657 is about 681.2754730312.

The spelling of 316204657 in words is "three hundred sixteen million, two hundred four thousand, six hundred fifty-seven".