12539125 has 8 divisors (see below), whose sum is σ = 15648984. Its totient is φ = 10031200.

The previous prime is 12539113. The next prime is 12539161. The reversal of 12539125 is 52193521.

It can be written as a sum of positive squares in 4 ways, for example, as 2792241 + 9746884 = 1671^2 + 3122^2 .

It is not a de Polignac number, because 12539125 - 2¹⁹ = 12014837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12539093 and 12539102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50032 + ... + 50281.

It is an arithmetic number, because the mean of its divisors is an integer number (1956123).

Almost surely, 2^12539125 is an apocalyptic number.

It is an amenable number.

12539125 is a deficient number, since it is larger than the sum of its proper divisors (3109859).

12539125 is an equidigital number, since it uses as much as digits as its factorization.

12539125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100328 (or 100318 counting only the distinct ones).

The product of its digits is 2700, while the sum is 28.

The square root of 12539125 is about 3541.0626935992. The cubic root of 12539125 is about 232.3213257077.

The spelling of 12539125 in words is "twelve million, five hundred thirty-nine thousand, one hundred twenty-five".