1312551412 has 12 divisors (see below), whose sum is σ = 2297462020. Its totient is φ = 656133696.

The previous prime is 1312551403. The next prime is 1312551437. The reversal of 1312551412 is 2141552131.

It can be written as a sum of positive squares in 2 ways, for example, as 761428836 + 551122576 = 27594^2 + 23476^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13143 + ... + 52894.

Almost surely, 2^1312551412 is an apocalyptic number.

It is an amenable number.

1312551412 is a deficient number, since it is larger than the sum of its proper divisors (984910608).

1312551412 is a wasteful number, since it uses less digits than its factorization.

1312551412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71010 (or 71008 counting only the distinct ones).

The product of its digits is 1200, while the sum is 25.

The square root of 1312551412 is about 36229.1514115360. The cubic root of 1312551412 is about 1094.8940806480.

The spelling of 1312551412 in words is "one billion, three hundred twelve million, five hundred fifty-one thousand, four hundred twelve".