120198165 has 16 divisors (see below), whose sum is σ = 193704000. Its totient is φ = 63643392.

The previous prime is 120198137. The next prime is 120198167. The reversal of 120198165 is 561891021.

It is not a de Polignac number, because 120198165 - 2⁷ = 120198037 is a prime.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120198167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26740 + ... + 30909.

It is an arithmetic number, because the mean of its divisors is an integer number (12106500).

Almost surely, 2^120198165 is an apocalyptic number.

120198165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120198165 is a deficient number, since it is larger than the sum of its proper divisors (73505835).

120198165 is a wasteful number, since it uses less digits than its factorization.

120198165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57796.

The product of its (nonzero) digits is 4320, while the sum is 33.

The square root of 120198165 is about 10963.4923724149. The cubic root of 120198165 is about 493.5137749461.

The spelling of 120198165 in words is "one hundred twenty million, one hundred ninety-eight thousand, one hundred sixty-five".