12654972 has 36 divisors (see below), whose sum is σ = 34898136. Its totient is φ = 3834720.

The previous prime is 12654959. The next prime is 12654979. The reversal of 12654972 is 27945621.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12654979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15583 + ... + 16374.

Almost surely, 2^12654972 is an apocalyptic number.

12654972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12654972 is an abundant number, since it is smaller than the sum of its proper divisors (22243164).

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

12654972 is a wasteful number, since it uses less digits than its factorization.

12654972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31978 (or 31973 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 12654972 is about 3557.3827457838. The cubic root of 12654972 is about 233.0345936467.

It can be divided in two parts, 126549 and 72, that added together give a palindrome (126621).

The spelling of 12654972 in words is "twelve million, six hundred fifty-four thousand, nine hundred seventy-two".