317260645 has 8 divisors (see below), whose sum is σ = 409998456. Its totient is φ = 234284736.

The previous prime is 317260637. The next prime is 317260663. The reversal of 317260645 is 546062713.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 52287361 + 264973284 = 7231^2 + 16278^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 317260645 - 2³ = 317260637 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 317260645.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2440402 + ... + 2440531.

It is an arithmetic number, because the mean of its divisors is an integer number (51249807).

Almost surely, 2^317260645 is an apocalyptic number.

It is an amenable number.

317260645 is a deficient number, since it is larger than the sum of its proper divisors (92737811).

317260645 is a wasteful number, since it uses less digits than its factorization.

317260645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4880951.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 317260645 is about 17811.8119516236. The cubic root of 317260645 is about 682.0330197031.

The spelling of 317260645 in words is "three hundred seventeen million, two hundred sixty thousand, six hundred forty-five".