317457641 has 2 divisors, whose sum is σ = 317457642. Its totient is φ = 317457640.

The previous prime is 317457631. The next prime is 317457649. The reversal of 317457641 is 146754713.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 270931600 + 46526041 = 16460^2 + 6821^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-317457641 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 317457595 and 317457604.

It is not a weakly prime, because it can be changed into another prime (317457649) 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, 158728820 + 158728821.

It is an arithmetic number, because the mean of its divisors is an integer number (158728821).

Almost surely, 2^317457641 is an apocalyptic number.

It is an amenable number.

317457641 is a deficient number, since it is larger than the sum of its proper divisors (1).

317457641 is an equidigital number, since it uses as much as digits as its factorization.

317457641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70560, while the sum is 38.

The square root of 317457641 is about 17817.3410193553. The cubic root of 317457641 is about 682.1741549491.

The spelling of 317457641 in words is "three hundred seventeen million, four hundred fifty-seven thousand, six hundred forty-one".