120615825 has 36 divisors (see below), whose sum is σ = 219211664. Its totient is φ = 58476000.

The previous prime is 120615821. The next prime is 120615827. The reversal of 120615825 is 528516021.

It is not a de Polignac number, because 120615825 - 2² = 120615821 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 120615792 and 120615801.

It is not an unprimeable number, because it can be changed into a prime (120615821) 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 35 ways as a sum of consecutive naturals, for example, 2430 + ... + 15720.

Almost surely, 2^120615825 is an apocalyptic number.

120615825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120615825 is a deficient number, since it is larger than the sum of its proper divisors (98595839).

120615825 is a wasteful number, since it uses less digits than its factorization.

120615825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13326 (or 13310 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 120615825 is about 10982.5236170927. The cubic root of 120615825 is about 494.0847284284.

The spelling of 120615825 in words is "one hundred twenty million, six hundred fifteen thousand, eight hundred twenty-five".