317356139 has 8 divisors (see below), whose sum is σ = 331402752. Its totient is φ = 303330280.

The previous prime is 317356121. The next prime is 317356147. The reversal of 317356139 is 931653713.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-317356139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (317350139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31742 + ... + 40524.

It is an arithmetic number, because the mean of its divisors is an integer number (41425344).

Almost surely, 2^317356139 is an apocalyptic number.

317356139 is a deficient number, since it is larger than the sum of its proper divisors (14046613).

317356139 is a wasteful number, since it uses less digits than its factorization.

317356139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10377.

The product of its digits is 51030, while the sum is 38.

The square root of 317356139 is about 17814.4923868181. The cubic root of 317356139 is about 682.1014424429.

The spelling of 317356139 in words is "three hundred seventeen million, three hundred fifty-six thousand, one hundred thirty-nine".