317153849 has 2 divisors, whose sum is σ = 317153850. Its totient is φ = 317153848.

The previous prime is 317153843. The next prime is 317153861. The reversal of 317153849 is 948351713.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 315701824 + 1452025 = 17768^2 + 1205^2 .

It is a cyclic number.

It is not a de Polignac number, because 317153849 - 2⁸ = 317153593 is a prime.

It is not a weakly prime, because it can be changed into another prime (317153843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158576924 + 158576925.

It is an arithmetic number, because the mean of its divisors is an integer number (158576925).

Almost surely, 2^317153849 is an apocalyptic number.

It is an amenable number.

317153849 is a deficient number, since it is larger than the sum of its proper divisors (1).

317153849 is an equidigital number, since it uses as much as digits as its factorization.

317153849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 41.

The square root of 317153849 is about 17808.8138010368. The cubic root of 317153849 is about 681.9564826623.

The spelling of 317153849 in words is "three hundred seventeen million, one hundred fifty-three thousand, eight hundred forty-nine".