12839525 has 12 divisors (see below), whose sum is σ = 15968100. Its totient is φ = 10241280.

The previous prime is 12839513. The next prime is 12839527. The reversal of 12839525 is 52593821.

It can be written as a sum of positive squares in 6 ways, for example, as 66049 + 12773476 = 257^2 + 3574^2 .

It is not a de Polignac number, because 12839525 - 2⁴ = 12839509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12839527) 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 11 ways as a sum of consecutive naturals, for example, 12221 + ... + 13229.

It is an arithmetic number, because the mean of its divisors is an integer number (1330675).

Almost surely, 2^12839525 is an apocalyptic number.

It is an amenable number.

12839525 is a deficient number, since it is larger than the sum of its proper divisors (3128575).

12839525 is a wasteful number, since it uses less digits than its factorization.

12839525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1528 (or 1523 counting only the distinct ones).

The product of its digits is 21600, while the sum is 35.

The square root of 12839525 is about 3583.2282930341. The cubic root of 12839525 is about 234.1619462384.

The spelling of 12839525 in words is "twelve million, eight hundred thirty-nine thousand, five hundred twenty-five".