120636025 has 6 divisors (see below), whose sum is σ = 149588702. Its totient is φ = 96508800.

The previous prime is 120636007. The next prime is 120636031. The reversal of 120636025 is 520636021.

It can be written as a sum of positive squares in 3 ways, for example, as 40551424 + 80084601 = 6368^2 + 8949^2 .

It is not a de Polignac number, because 120636025 - 2²⁵ = 87081593 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 4825441 = 120636025 / (1 + 2 + 0 + 6 + 3 + 6 + 0 + 2 + 5).

It is a Duffinian 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 5 ways as a sum of consecutive naturals, for example, 2412696 + ... + 2412745.

Almost surely, 2^120636025 is an apocalyptic number.

It is an amenable number.

120636025 is a deficient number, since it is larger than the sum of its proper divisors (28952677).

120636025 is an equidigital number, since it uses as much as digits as its factorization.

120636025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4825451 (or 4825446 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 120636025 is about 10983.4432215039. The cubic root of 120636025 is about 494.1123089840.

The spelling of 120636025 in words is "one hundred twenty million, six hundred thirty-six thousand, twenty-five".