317655641 has 2 divisors, whose sum is σ = 317655642. Its totient is φ = 317655640.

The previous prime is 317655601. The next prime is 317655671. The reversal of 317655641 is 146556713.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 317588041 + 67600 = 17821^2 + 260^2 .

It is a cyclic number.

It is not a de Polignac number, because 317655641 - 2¹⁸ = 317393497 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 317655595 and 317655604.

It is not a weakly prime, because it can be changed into another prime (317655601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158827820 + 158827821.

It is an arithmetic number, because the mean of its divisors is an integer number (158827821).

Almost surely, 2^317655641 is an apocalyptic number.

It is an amenable number.

317655641 is a deficient number, since it is larger than the sum of its proper divisors (1).

317655641 is an equidigital number, since it uses as much as digits as its factorization.

317655641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 38.

The square root of 317655641 is about 17822.8965378807. The cubic root of 317655641 is about 682.3159506761.

The spelling of 317655641 in words is "three hundred seventeen million, six hundred fifty-five thousand, six hundred forty-one".