2165164 has 24 divisors (see below), whose sum is σ = 4121600. Its totient is φ = 991440.

The previous prime is 2165159. The next prime is 2165201. The reversal of 2165164 is 4615612.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1897 + ... + 2815.

2^2165164 is an apocalyptic number.

It is an amenable number.

2165164 is a deficient number, since it is larger than the sum of its proper divisors (1956436).

2165164 is a wasteful number, since it uses less digits than its factorization.

2165164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973 (or 971 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 2165164 is about 1471.4496253695. The cubic root of 2165164 is about 129.3690133133.

The spelling of 2165164 in words is "two million, one hundred sixty-five thousand, one hundred sixty-four".