1313576256 has 28 divisors (see below), whose sum is σ = 3475504352. Its totient is φ = 437858688.

The previous prime is 1313576233. The next prime is 1313576291. The reversal of 1313576256 is 6526753131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3420580 + ... + 3420963.

Almost surely, 2^1313576256 is an apocalyptic number.

1313576256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1313576256 is an abundant number, since it is smaller than the sum of its proper divisors (2161928096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1313576256 is an equidigital number, since it uses as much as digits as its factorization.

1313576256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6841558 (or 6841548 counting only the distinct ones).

The product of its digits is 113400, while the sum is 39.

The square root of 1313576256 is about 36243.2925656596. The cubic root of 1313576256 is about 1095.1789720182.

The spelling of 1313576256 in words is "one billion, three hundred thirteen million, five hundred seventy-six thousand, two hundred fifty-six".