317631401 has 2 divisors, whose sum is σ = 317631402. Its totient is φ = 317631400.

The previous prime is 317631373. The next prime is 317631407. The reversal of 317631401 is 104136713.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 218330176 + 99301225 = 14776^2 + 9965^2 .

It is a cyclic number.

It is not a de Polignac number, because 317631401 - 2¹⁰ = 317630377 is a prime.

It is not a weakly prime, because it can be changed into another prime (317631407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158815700 + 158815701.

It is an arithmetic number, because the mean of its divisors is an integer number (158815701).

Almost surely, 2^317631401 is an apocalyptic number.

It is an amenable number.

317631401 is a deficient number, since it is larger than the sum of its proper divisors (1).

317631401 is an equidigital number, since it uses as much as digits as its factorization.

317631401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 317631401 is about 17822.2165007611. The cubic root of 317631401 is about 682.2985946075.

The spelling of 317631401 in words is "three hundred seventeen million, six hundred thirty-one thousand, four hundred one".