317706131 has 4 divisors (see below), whose sum is σ = 317929272. Its totient is φ = 317482992.

The previous prime is 317706031. The next prime is 317706133. The reversal of 317706131 is 131607713.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131607713 = 29 ⋅4538197.

It is a cyclic number.

It is not a de Polignac number, because 317706131 - 2¹⁰ = 317705107 is a prime.

It is a super-2 number, since 2×317706131² = 201874371349978322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 317706094 and 317706103.

It is not an unprimeable number, because it can be changed into a prime (317706133) 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 in 3 ways as a sum of consecutive naturals, for example, 109421 + ... + 112286.

It is an arithmetic number, because the mean of its divisors is an integer number (79482318).

Almost surely, 2^317706131 is an apocalyptic number.

317706131 is a deficient number, since it is larger than the sum of its proper divisors (223141).

317706131 is a wasteful number, since it uses less digits than its factorization.

317706131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223140.

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 317706131 is about 17824.3129180342. The cubic root of 317706131 is about 682.3520991577.

The spelling of 317706131 in words is "three hundred seventeen million, seven hundred six thousand, one hundred thirty-one".