120651165 has 48 divisors (see below), whose sum is σ = 220147200. Its totient is φ = 61036416.

The previous prime is 120651149. The next prime is 120651173. The reversal of 120651165 is 561156021.

It is a happy number.

120651165 is a `hidden beast` number, since 1 + 2 + 0 + 651 + 1 + 6 + 5 = 666.

It is not a de Polignac number, because 120651165 - 2⁴ = 120651149 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 76212 + ... + 77778.

It is an arithmetic number, because the mean of its divisors is an integer number (4586400).

Almost surely, 2^120651165 is an apocalyptic number.

120651165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120651165 is a deficient number, since it is larger than the sum of its proper divisors (99496035).

120651165 is a wasteful number, since it uses less digits than its factorization.

120651165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666 (or 1663 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 120651165 is about 10984.1324190853. The cubic root of 120651165 is about 494.1329787285.

The spelling of 120651165 in words is "one hundred twenty million, six hundred fifty-one thousand, one hundred sixty-five".