120644425 has 12 divisors (see below), whose sum is σ = 163199376. Its totient is φ = 87741200.

The previous prime is 120644413. The next prime is 120644431. The reversal of 120644425 is 524446021.

It is not a de Polignac number, because 120644425 - 2¹⁵ = 120611657 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120644393 and 120644402.

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 11 ways as a sum of consecutive naturals, for example, 219079 + ... + 219628.

It is an arithmetic number, because the mean of its divisors is an integer number (13599948).

Almost surely, 2^120644425 is an apocalyptic number.

It is an amenable number.

120644425 is a deficient number, since it is larger than the sum of its proper divisors (42554951).

120644425 is a wasteful number, since it uses less digits than its factorization.

120644425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438728 (or 438723 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 120644425 is about 10983.8256085938. The cubic root of 120644425 is about 494.1237772196.

The spelling of 120644425 in words is "one hundred twenty million, six hundred forty-four thousand, four hundred twenty-five".