12528972 has 24 divisors (see below), whose sum is σ = 32482800. Its totient is φ = 4176288.

The previous prime is 12528959. The next prime is 12528979. The reversal of 12528972 is 27982521.

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

It is not an unprimeable number, because it can be changed into a prime (12528979) 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, 57897 + ... + 58112.

It is an arithmetic number, because the mean of its divisors is an integer number (1353450).

Almost surely, 2^12528972 is an apocalyptic number.

12528972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12528972 is an abundant number, since it is smaller than the sum of its proper divisors (19953828).

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

12528972 is a wasteful number, since it uses less digits than its factorization.

12528972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116022 (or 116014 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 12528972 is about 3539.6287940969. The cubic root of 12528972 is about 232.2586048151.

The spelling of 12528972 in words is "twelve million, five hundred twenty-eight thousand, nine hundred seventy-two".