317912745 has 16 divisors (see below), whose sum is σ = 508939200. Its totient is φ = 169460544.

The previous prime is 317912741. The next prime is 317912753. The reversal of 317912745 is 547219713.

It is not a de Polignac number, because 317912745 - 2² = 317912741 is a prime.

It is not an unprimeable number, because it can be changed into a prime (317912741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29331 + ... + 38679.

It is an arithmetic number, because the mean of its divisors is an integer number (31808700).

Almost surely, 2^317912745 is an apocalyptic number.

It is an amenable number.

317912745 is a deficient number, since it is larger than the sum of its proper divisors (191026455).

317912745 is a wasteful number, since it uses less digits than its factorization.

317912745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11624.

The product of its digits is 52920, while the sum is 39.

The square root of 317912745 is about 17830.1078235663. The cubic root of 317912745 is about 682.4999852406.

The spelling of 317912745 in words is "three hundred seventeen million, nine hundred twelve thousand, seven hundred forty-five".