317450139 has 8 divisors (see below), whose sum is σ = 423670032. Its totient is φ = 211431840.

The previous prime is 317450131. The next prime is 317450143. The reversal of 317450139 is 931054713.

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

It is not a de Polignac number, because 317450139 - 2³ = 317450131 is a prime.

It is a super-2 number, since 2×317450139² = 201549181502238642, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (317450131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46684 + ... + 53049.

It is an arithmetic number, because the mean of its divisors is an integer number (52958754).

Almost surely, 2^317450139 is an apocalyptic number.

317450139 is a deficient number, since it is larger than the sum of its proper divisors (106219893).

317450139 is a wasteful number, since it uses less digits than its factorization.

317450139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100797.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 317450139 is about 17817.1304928712. The cubic root of 317450139 is about 682.1687813074.

The spelling of 317450139 in words is "three hundred seventeen million, four hundred fifty thousand, one hundred thirty-nine".