317719085 has 4 divisors (see below), whose sum is σ = 381262908. Its totient is φ = 254175264.

The previous prime is 317719043. The next prime is 317719091. The reversal of 317719085 is 580917713.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 580917713 = 16927 ⋅34319.

It can be written as a sum of positive squares in 2 ways, for example, as 108222409 + 209496676 = 10403^2 + 14474^2 .

It is a cyclic number.

It is not a de Polignac number, because 317719085 - 2⁸ = 317718829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31771904 + ... + 31771913.

It is an arithmetic number, because the mean of its divisors is an integer number (95315727).

Almost surely, 2^317719085 is an apocalyptic number.

It is an amenable number.

317719085 is a deficient number, since it is larger than the sum of its proper divisors (63543823).

317719085 is an equidigital number, since it uses as much as digits as its factorization.

317719085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63543822.

The product of its (nonzero) digits is 52920, while the sum is 41.

The square root of 317719085 is about 17824.6762943959. The cubic root of 317719085 is about 682.3613729993.

The spelling of 317719085 in words is "three hundred seventeen million, seven hundred nineteen thousand, eighty-five".