120163185 has 24 divisors (see below), whose sum is σ = 209447784. Its totient is φ = 63728640.

The previous prime is 120163139. The next prime is 120163189. The reversal of 120163185 is 581361021.

120163185 is a `hidden beast` number, since 1 + 20 + 1 + 631 + 8 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 63504 + 120099681 = 252^2 + 10959^2 .

It is not a de Polignac number, because 120163185 - 2⁹ = 120162673 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (120163189) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 769 + ... + 15521.

It is an arithmetic number, because the mean of its divisors is an integer number (8726991).

Almost surely, 2^120163185 is an apocalyptic number.

120163185 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120163185 is a deficient number, since it is larger than the sum of its proper divisors (89284599).

120163185 is a wasteful number, since it uses less digits than its factorization.

120163185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14945 (or 14942 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 120163185 is about 10961.8969617489. The cubic root of 120163185 is about 493.4658962707.

The spelling of 120163185 in words is "one hundred twenty million, one hundred sixty-three thousand, one hundred eighty-five".