317123957 has 2 divisors, whose sum is σ = 317123958. Its totient is φ = 317123956.

The previous prime is 317123923. The next prime is 317123969. The reversal of 317123957 is 759321713.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 208109476 + 109014481 = 14426^2 + 10441^2 .

It is a cyclic number.

It is not a de Polignac number, because 317123957 - 2¹⁰ = 317122933 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 317123957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (317123987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158561978 + 158561979.

It is an arithmetic number, because the mean of its divisors is an integer number (158561979).

Almost surely, 2^317123957 is an apocalyptic number.

It is an amenable number.

317123957 is a deficient number, since it is larger than the sum of its proper divisors (1).

317123957 is an equidigital number, since it uses as much as digits as its factorization.

317123957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39690, while the sum is 38.

The square root of 317123957 is about 17807.9745338991. The cubic root of 317123957 is about 681.9350570107.

The spelling of 317123957 in words is "three hundred seventeen million, one hundred twenty-three thousand, nine hundred fifty-seven".