12975125 has 8 divisors (see below), whose sum is σ = 16193112. Its totient is φ = 10380000.

The previous prime is 12975113. The next prime is 12975139. The reversal of 12975125 is 52157921.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 521284 + 12453841 = 722^2 + 3529^2 .

It is a de Polignac number, because none of the positive numbers 2^k-12975125 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12975091 and 12975100.

It is a congruent number.

It is an unprimeable number.

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, 51776 + ... + 52025.

It is an arithmetic number, because the mean of its divisors is an integer number (2024139).

Almost surely, 2^12975125 is an apocalyptic number.

It is an amenable number.

12975125 is a deficient number, since it is larger than the sum of its proper divisors (3217987).

12975125 is an equidigital number, since it uses as much as digits as its factorization.

12975125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103816 (or 103806 counting only the distinct ones).

The product of its digits is 6300, while the sum is 32.

The square root of 12975125 is about 3602.1000818967. The cubic root of 12975125 is about 234.9834000648.

The spelling of 12975125 in words is "twelve million, nine hundred seventy-five thousand, one hundred twenty-five".