1317976885 has 8 divisors (see below), whose sum is σ = 1581897600. Its totient is φ = 1054164624.

The previous prime is 1317976883. The next prime is 1317976903. The reversal of 1317976885 is 5886797131.

It is a happy number.

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 1317976885 - 2¹ = 1317976883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317976883) 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, 2584 + ... + 51406.

It is an arithmetic number, because the mean of its divisors is an integer number (197737200).

Almost surely, 2^1317976885 is an apocalyptic number.

It is an amenable number.

1317976885 is a deficient number, since it is larger than the sum of its proper divisors (263920715).

1317976885 is an equidigital number, since it uses as much as digits as its factorization.

1317976885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54227.

The product of its digits is 2540160, while the sum is 55.

The square root of 1317976885 is about 36303.9513689626. The cubic root of 1317976885 is about 1096.4005999688.

The spelling of 1317976885 in words is "one billion, three hundred seventeen million, nine hundred seventy-six thousand, eight hundred eighty-five".