12751432 has 16 divisors (see below), whose sum is σ = 25167600. Its totient is φ = 6040080.

The previous prime is 12751397. The next prime is 12751439. The reversal of 12751432 is 23415721.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12751397 and 12751406.

It is not an unprimeable number, because it can be changed into a prime (12751439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41794 + ... + 42097.

It is an arithmetic number, because the mean of its divisors is an integer number (1572975).

Almost surely, 2^12751432 is an apocalyptic number.

It is an amenable number.

12751432 is a deficient number, since it is larger than the sum of its proper divisors (12416168).

12751432 is a wasteful number, since it uses less digits than its factorization.

12751432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83916 (or 83912 counting only the distinct ones).

The product of its digits is 1680, while the sum is 25.

The square root of 12751432 is about 3570.9147287495. The cubic root of 12751432 is about 233.6251822011.

The spelling of 12751432 in words is "twelve million, seven hundred fifty-one thousand, four hundred thirty-two".