317425217 has 2 divisors, whose sum is σ = 317425218. Its totient is φ = 317425216.

The previous prime is 317425211. The next prime is 317425219. The reversal of 317425217 is 712524713.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 231009601 + 86415616 = 15199^2 + 9296^2 .

It is a cyclic number.

It is not a de Polignac number, because 317425217 - 2⁴ = 317425201 is a prime.

Together with 317425219, 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 (317425211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158712608 + 158712609.

It is an arithmetic number, because the mean of its divisors is an integer number (158712609).

Almost surely, 2^317425217 is an apocalyptic number.

It is an amenable number.

317425217 is a deficient number, since it is larger than the sum of its proper divisors (1).

317425217 is an equidigital number, since it uses as much as digits as its factorization.

317425217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11760, while the sum is 32.

The square root of 317425217 is about 17816.4310960417. The cubic root of 317425217 is about 682.1509292070.

The spelling of 317425217 in words is "three hundred seventeen million, four hundred twenty-five thousand, two hundred seventeen".