317158860173 has 2 divisors, whose sum is σ = 317158860174. Its totient is φ = 317158860172.

The previous prime is 317158860167. The next prime is 317158860181. The reversal of 317158860173 is 371068851713.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216636255364 + 100522604809 = 465442^2 + 317053^2 .

It is a cyclic number.

It is not a de Polignac number, because 317158860173 - 2²² = 317154665869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (317158860113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158579430086 + 158579430087.

It is an arithmetic number, because the mean of its divisors is an integer number (158579430087).

Almost surely, 2^317158860173 is an apocalyptic number.

It is an amenable number.

317158860173 is a deficient number, since it is larger than the sum of its proper divisors (1).

317158860173 is an equidigital number, since it uses as much as digits as its factorization.

317158860173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 846720, while the sum is 50.

The spelling of 317158860173 in words is "three hundred seventeen billion, one hundred fifty-eight million, eight hundred sixty thousand, one hundred seventy-three".