1312475272 has 64 divisors (see below), whose sum is σ = 2692569600. Its totient is φ = 598080000.

The previous prime is 1312475233. The next prime is 1312475279. The reversal of 1312475272 is 2725742131.

It is a super-2 number, since 2×1312475272² = 3445182679222947968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1312475279) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 292647 + ... + 297097.

It is an arithmetic number, because the mean of its divisors is an integer number (42071400).

Almost surely, 2^1312475272 is an apocalyptic number.

It is an amenable number.

1312475272 is an abundant number, since it is smaller than the sum of its proper divisors (1380094328).

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

1312475272 is a wasteful number, since it uses less digits than its factorization.

1312475272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4558 (or 4554 counting only the distinct ones).

The product of its digits is 23520, while the sum is 34.

The square root of 1312475272 is about 36228.1005850431. The cubic root of 1312475272 is about 1094.8729089447.

The spelling of 1312475272 in words is "one billion, three hundred twelve million, four hundred seventy-five thousand, two hundred seventy-two".