317211552157 has 2 divisors, whose sum is σ = 317211552158. Its totient is φ = 317211552156.

The previous prime is 317211552089. The next prime is 317211552179. The reversal of 317211552157 is 751255112713.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192961647076 + 124249905081 = 439274^2 + 352491^2 .

It is a cyclic number.

It is not a de Polignac number, because 317211552157 - 2¹⁹ = 317211027869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (317211552257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158605776078 + 158605776079.

It is an arithmetic number, because the mean of its divisors is an integer number (158605776079).

Almost surely, 2^317211552157 is an apocalyptic number.

It is an amenable number.

317211552157 is a deficient number, since it is larger than the sum of its proper divisors (1).

317211552157 is an equidigital number, since it uses as much as digits as its factorization.

317211552157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 73500, while the sum is 40.

The spelling of 317211552157 in words is "three hundred seventeen billion, two hundred eleven million, five hundred fifty-two thousand, one hundred fifty-seven".