2199165 has 16 divisors (see below), whose sum is σ = 3538176. Its totient is φ = 1166400.

The previous prime is 2199163. The next prime is 2199173. The reversal of 2199165 is 5619912.

It is not a de Polignac number, because 2199165 - 2¹ = 2199163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2199163) 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, 3795 + ... + 4335.

It is an arithmetic number, because the mean of its divisors is an integer number (221136).

2^2199165 is an apocalyptic number.

It is an amenable number.

2199165 is a deficient number, since it is larger than the sum of its proper divisors (1339011).

2199165 is a wasteful number, since it uses less digits than its factorization.

2199165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820.

The product of its digits is 4860, while the sum is 33.

The square root of 2199165 is about 1482.9581922630. The cubic root of 2199165 is about 130.0426881506.

The spelling of 2199165 in words is "two million, one hundred ninety-nine thousand, one hundred sixty-five".