13120525 has 12 divisors (see below), whose sum is σ = 17748864. Its totient is φ = 9542000.

The previous prime is 13120517. The next prime is 13120529. The reversal of 13120525 is 52502131.

It is not a de Polignac number, because 13120525 - 2³ = 13120517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13120529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23581 + ... + 24130.

It is an arithmetic number, because the mean of its divisors is an integer number (1479072).

Almost surely, 2^13120525 is an apocalyptic number.

It is an amenable number.

13120525 is a deficient number, since it is larger than the sum of its proper divisors (4628339).

13120525 is a wasteful number, since it uses less digits than its factorization.

13120525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47732 (or 47727 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 13120525 is about 3622.2265252190. The cubic root of 13120525 is about 235.8578874852.

Adding to 13120525 its reverse (52502131), we get a palindrome (65622656).

The spelling of 13120525 in words is "thirteen million, one hundred twenty thousand, five hundred twenty-five".