2165163 has 48 divisors (see below), whose sum is σ = 3983616. Its totient is φ = 1028160.

The previous prime is 2165159. The next prime is 2165201. The reversal of 2165163 is 3615612.

It is not a de Polignac number, because 2165163 - 2² = 2165159 is a prime.

2165163 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2165143) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20970 + ... + 21072.

It is an arithmetic number, because the mean of its divisors is an integer number (82992).

2^2165163 is an apocalyptic number.

2165163 is a deficient number, since it is larger than the sum of its proper divisors (1818453).

2165163 is a wasteful number, since it uses less digits than its factorization.

2165163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144 (or 137 counting only the distinct ones).

The product of its digits is 1080, while the sum is 24.

The square root of 2165163 is about 1471.4492855685. The cubic root of 2165163 is about 129.3689933966.

The spelling of 2165163 in words is "two million, one hundred sixty-five thousand, one hundred sixty-three".