12751872 has 88 divisors (see below), whose sum is σ = 38909376. Its totient is φ = 3637248.

The previous prime is 12751841. The next prime is 12751873. The reversal of 12751872 is 27815721.

It is a super-2 number, since 2×12751872² = 325220479008768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12751873) 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, 21208 + ... + 21800.

It is an arithmetic number, because the mean of its divisors is an integer number (442152).

Almost surely, 2^12751872 is an apocalyptic number.

12751872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12751872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19454688).

12751872 is an abundant number, since it is smaller than the sum of its proper divisors (26157504).

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

12751872 is an equidigital number, since it uses as much as digits as its factorization.

12751872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623 (or 605 counting only the distinct ones).

The product of its digits is 7840, while the sum is 33.

The square root of 12751872 is about 3570.9763370821. The cubic root of 12751872 is about 233.6278693215.

The spelling of 12751872 in words is "twelve million, seven hundred fifty-one thousand, eight hundred seventy-two".