317511379 has 2 divisors, whose sum is σ = 317511380. Its totient is φ = 317511378.

The previous prime is 317511347. The next prime is 317511409. The reversal of 317511379 is 973115713.

It is a strong prime.

It is an emirp because it is prime and its reverse (973115713) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 317511379 - 2⁵ = 317511347 is a prime.

It is not a weakly prime, because it can be changed into another prime (317511079) 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 as a sum of consecutive naturals, namely, 158755689 + 158755690.

It is an arithmetic number, because the mean of its divisors is an integer number (158755690).

Almost surely, 2^317511379 is an apocalyptic number.

317511379 is a deficient number, since it is larger than the sum of its proper divisors (1).

317511379 is an equidigital number, since it uses as much as digits as its factorization.

317511379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19845, while the sum is 37.

The square root of 317511379 is about 17818.8489807844. The cubic root of 317511379 is about 682.2126447104.

The spelling of 317511379 in words is "three hundred seventeen million, five hundred eleven thousand, three hundred seventy-nine".