12451872 has 24 divisors (see below), whose sum is σ = 32686416. Its totient is φ = 4150592.

The previous prime is 12451867. The next prime is 12451877. The reversal of 12451872 is 27815421.

It is an interprime number because it is at equal distance from previous prime (12451867) and next prime (12451877).

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (12451877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64758 + ... + 64949.

It is an arithmetic number, because the mean of its divisors is an integer number (1361934).

Almost surely, 2^12451872 is an apocalyptic number.

12451872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12451872 is an abundant number, since it is smaller than the sum of its proper divisors (20234544).

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

12451872 is a wasteful number, since it uses less digits than its factorization.

12451872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129720 (or 129712 counting only the distinct ones).

The product of its digits is 4480, while the sum is 30.

The square root of 12451872 is about 3528.7210147587. The cubic root of 12451872 is about 231.7812047414.

The spelling of 12451872 in words is "twelve million, four hundred fifty-one thousand, eight hundred seventy-two".