1317860431 has 8 divisors (see below), whose sum is σ = 1349187840. Its totient is φ = 1286563992.

The previous prime is 1317860429. The next prime is 1317860447. The reversal of 1317860431 is 1340687131.

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 1317860431 - 2¹ = 1317860429 is a prime.

It is a super-2 number, since 2×1317860431² = 3473512231191011522, 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 (1317860491) 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, 94026 + ... + 107128.

It is an arithmetic number, because the mean of its divisors is an integer number (168648480).

Almost surely, 2^1317860431 is an apocalyptic number.

1317860431 is a deficient number, since it is larger than the sum of its proper divisors (31327409).

1317860431 is a wasteful number, since it uses less digits than its factorization.

1317860431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15485.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 1317860431 is about 36302.3474585322. The cubic root of 1317860431 is about 1096.3683070413.

The spelling of 1317860431 in words is "one billion, three hundred seventeen million, eight hundred sixty thousand, four hundred thirty-one".