317825969 has 2 divisors, whose sum is σ = 317825970. Its totient is φ = 317825968.

The previous prime is 317825941. The next prime is 317825971. The reversal of 317825969 is 969528713.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 297907600 + 19918369 = 17260^2 + 4463^2 .

It is a cyclic number.

It is not a de Polignac number, because 317825969 - 2²⁰ = 316777393 is a prime.

It is a super-2 number, since 2×317825969² = 202026693141577922, which contains 22 as substring.

Together with 317825971, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (317825909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158912984 + 158912985.

It is an arithmetic number, because the mean of its divisors is an integer number (158912985).

Almost surely, 2^317825969 is an apocalyptic number.

It is an amenable number.

317825969 is a deficient number, since it is larger than the sum of its proper divisors (1).

317825969 is an equidigital number, since it uses as much as digits as its factorization.

317825969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 50.

The square root of 317825969 is about 17827.6742453972. The cubic root of 317825969 is about 682.4378822380.

The spelling of 317825969 in words is "three hundred seventeen million, eight hundred twenty-five thousand, nine hundred sixty-nine".