317081641 has 2 divisors, whose sum is σ = 317081642. Its totient is φ = 317081640.

The previous prime is 317081629. The next prime is 317081683. The reversal of 317081641 is 146180713.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 316982416 + 99225 = 17804^2 + 315^2 .

It is a cyclic number.

It is not a de Polignac number, because 317081641 - 2²⁷ = 182863913 is a prime.

It is not a weakly prime, because it can be changed into another prime (317081341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158540820 + 158540821.

It is an arithmetic number, because the mean of its divisors is an integer number (158540821).

Almost surely, 2^317081641 is an apocalyptic number.

It is an amenable number.

317081641 is a deficient number, since it is larger than the sum of its proper divisors (1).

317081641 is an equidigital number, since it uses as much as digits as its factorization.

317081641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 317081641 is about 17806.7863748628. The cubic root of 317081641 is about 681.9047239218.

The spelling of 317081641 in words is "three hundred seventeen million, eighty-one thousand, six hundred forty-one".