2091165 has 16 divisors (see below), whose sum is σ = 3379200. Its totient is φ = 1104192.

The previous prime is 2091151. The next prime is 2091191. The reversal of 2091165 is 5611902.

It is not a de Polignac number, because 2091165 - 2⁴ = 2091149 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 996 + ... + 2274.

It is an arithmetic number, because the mean of its divisors is an integer number (211200).

2^2091165 is an apocalyptic number.

It is an amenable number.

2091165 is a deficient number, since it is larger than the sum of its proper divisors (1288035).

2091165 is a wasteful number, since it uses less digits than its factorization.

2091165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396.

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 2091165 is about 1446.0860970219. The cubic root of 2091165 is about 127.8780780776.

The spelling of 2091165 in words is "two million, ninety-one thousand, one hundred sixty-five".