317130791 has 2 divisors, whose sum is σ = 317130792. Its totient is φ = 317130790.

The previous prime is 317130757. The next prime is 317130823. The reversal of 317130791 is 197031713.

It is an a-pointer prime, because the next prime (317130823) can be obtained adding 317130791 to its sum of digits (32).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 317130791 - 2¹⁰ = 317129767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (317130701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158565395 + 158565396.

It is an arithmetic number, because the mean of its divisors is an integer number (158565396).

Almost surely, 2^317130791 is an apocalyptic number.

317130791 is a deficient number, since it is larger than the sum of its proper divisors (1).

317130791 is an equidigital number, since it uses as much as digits as its factorization.

317130791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3969, while the sum is 32.

The square root of 317130791 is about 17808.1664131937. The cubic root of 317130791 is about 681.9399555271.

The spelling of 317130791 in words is "three hundred seventeen million, one hundred thirty thousand, seven hundred ninety-one".