317731149605 has 8 divisors (see below), whose sum is σ = 384651516312. Its totient is φ = 251935495168.

The previous prime is 317731149587. The next prime is 317731149623. The reversal of 317731149605 is 506941137713.

It is an interprime number because it is at equal distance from previous prime (317731149587) and next prime (317731149623).

It can be written as a sum of positive squares in 4 ways, for example, as 1664558401 + 316066591204 = 40799^2 + 562198^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-317731149605 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 317731149605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281177444 + ... + 281178573.

It is an arithmetic number, because the mean of its divisors is an integer number (48081439539).

Almost surely, 2^317731149605 is an apocalyptic number.

It is an amenable number.

317731149605 is a deficient number, since it is larger than the sum of its proper divisors (66920366707).

317731149605 is a wasteful number, since it uses less digits than its factorization.

317731149605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562356135.

The product of its (nonzero) digits is 476280, while the sum is 47.

The spelling of 317731149605 in words is "three hundred seventeen billion, seven hundred thirty-one million, one hundred forty-nine thousand, six hundred five".