1317237479 has 8 divisors (see below), whose sum is σ = 1322231040. Its totient is φ = 1312254136.

The previous prime is 1317237433. The next prime is 1317237521. The reversal of 1317237479 is 9747327131.

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

It is a cyclic number.

It is not a de Polignac number, because 1317237479 - 2⁸ = 1317237223 is a prime.

It is a super-2 number, since 2×1317237479² = 3470229152164550882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317237409) 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 7 ways as a sum of consecutive naturals, for example, 333812 + ... + 337734.

It is an arithmetic number, because the mean of its divisors is an integer number (165278880).

Almost surely, 2^1317237479 is an apocalyptic number.

1317237479 is a deficient number, since it is larger than the sum of its proper divisors (4993561).

1317237479 is an equidigital number, since it uses as much as digits as its factorization.

1317237479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5109.

The product of its digits is 222264, while the sum is 44.

The square root of 1317237479 is about 36293.7663931425. The cubic root of 1317237479 is about 1096.1955288883.

The spelling of 1317237479 in words is "one billion, three hundred seventeen million, two hundred thirty-seven thousand, four hundred seventy-nine".