12525128 has 32 divisors (see below), whose sum is σ = 29280960. Its totient is φ = 4879680.

The previous prime is 12525127. The next prime is 12525137. The reversal of 12525128 is 82152521.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 12525097 and 12525106.

It is not an unprimeable number, because it can be changed into a prime (12525127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9551 + ... + 10782.

It is an arithmetic number, because the mean of its divisors is an integer number (915030).

Almost surely, 2^12525128 is an apocalyptic number.

It is an amenable number.

12525128 is an abundant number, since it is smaller than the sum of its proper divisors (16755832).

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

12525128 is a wasteful number, since it uses less digits than its factorization.

12525128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20357 (or 20353 counting only the distinct ones).

The product of its digits is 1600, while the sum is 26.

The square root of 12525128 is about 3539.0857576498. The cubic root of 12525128 is about 232.2348493838.

Adding to 12525128 its reverse (82152521), we get a palindrome (94677649).

The spelling of 12525128 in words is "twelve million, five hundred twenty-five thousand, one hundred twenty-eight".