317947133 has 12 divisors (see below), whose sum is σ = 370180800. Its totient is φ = 272287512.

The previous prime is 317947111. The next prime is 317947163. The reversal of 317947133 is 331749713.

It is a de Polignac number, because none of the positive numbers 2^k-317947133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317947103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75518 + ... + 79616.

It is an arithmetic number, because the mean of its divisors is an integer number (30848400).

Almost surely, 2^317947133 is an apocalyptic number.

It is an amenable number.

317947133 is a deficient number, since it is larger than the sum of its proper divisors (52233667).

317947133 is a wasteful number, since it uses less digits than its factorization.

317947133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5696 (or 5689 counting only the distinct ones).

The product of its digits is 47628, while the sum is 38.

The square root of 317947133 is about 17831.0721214401. The cubic root of 317947133 is about 682.5245925831.

The spelling of 317947133 in words is "three hundred seventeen million, nine hundred forty-seven thousand, one hundred thirty-three".