12751312 has 40 divisors (see below), whose sum is σ = 28408896. Its totient is φ = 5431296.

The previous prime is 12751301. The next prime is 12751313. The reversal of 12751312 is 21315721.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12751313) 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, 28563 + ... + 29005.

Almost surely, 2^12751312 is an apocalyptic number.

It is an amenable number.

12751312 is an abundant number, since it is smaller than the sum of its proper divisors (15657584).

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

12751312 is a wasteful number, since it uses less digits than its factorization.

12751312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715 (or 709 counting only the distinct ones).

The product of its digits is 420, while the sum is 22.

The square root of 12751312 is about 3570.8979262925. The cubic root of 12751312 is about 233.6244493394.

The spelling of 12751312 in words is "twelve million, seven hundred fifty-one thousand, three hundred twelve".