317260643 has 12 divisors (see below), whose sum is σ = 385105680. Its totient is φ = 260113392.

The previous prime is 317260637. The next prime is 317260663. The reversal of 317260643 is 346062713.

It is not a de Polignac number, because 317260643 - 2¹⁰ = 317259619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (317260663) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 139628 + ... + 141881.

It is an arithmetic number, because the mean of its divisors is an integer number (32092140).

Almost surely, 2^317260643 is an apocalyptic number.

317260643 is a deficient number, since it is larger than the sum of its proper divisors (67845037).

317260643 is a wasteful number, since it uses less digits than its factorization.

317260643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281546 (or 281539 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 317260643 is about 17811.8118954810. The cubic root of 317260643 is about 682.0330182700.

The spelling of 317260643 in words is "three hundred seventeen million, two hundred sixty thousand, six hundred forty-three".