120165081 has 16 divisors (see below), whose sum is σ = 163313856. Its totient is φ = 78575616.

The previous prime is 120165049. The next prime is 120165107. The reversal of 120165081 is 180561021.

It is not a de Polignac number, because 120165081 - 2⁵ = 120165049 is a prime.

It is a super-2 number, since 2×120165081² = 28879293383473122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120165781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40846 + ... + 43688.

It is an arithmetic number, because the mean of its divisors is an integer number (10207116).

Almost surely, 2^120165081 is an apocalyptic number.

It is an amenable number.

120165081 is a deficient number, since it is larger than the sum of its proper divisors (43148775).

120165081 is a wasteful number, since it uses less digits than its factorization.

120165081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3112.

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 120165081 is about 10961.9834427899. The cubic root of 120165081 is about 493.4684916481.

The spelling of 120165081 in words is "one hundred twenty million, one hundred sixty-five thousand, eighty-one".