317971361 has 2 divisors, whose sum is σ = 317971362. Its totient is φ = 317971360.

The previous prime is 317971337. The next prime is 317971373. The reversal of 317971361 is 163179713.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 254211136 + 63760225 = 15944^2 + 7985^2 .

It is a cyclic number.

It is not a de Polignac number, because 317971361 - 2¹⁴ = 317954977 is a prime.

It is a super-2 number, since 2×317971361² = 202211572832384642, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (317971301) 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, 158985680 + 158985681.

It is an arithmetic number, because the mean of its divisors is an integer number (158985681).

Almost surely, 2^317971361 is an apocalyptic number.

It is an amenable number.

317971361 is a deficient number, since it is larger than the sum of its proper divisors (1).

317971361 is an equidigital number, since it uses as much as digits as its factorization.

317971361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23814, while the sum is 38.

The square root of 317971361 is about 17831.7514843607. The cubic root of 317971361 is about 682.5419285740.

The spelling of 317971361 in words is "three hundred seventeen million, nine hundred seventy-one thousand, three hundred sixty-one".