2107165 has 4 divisors (see below), whose sum is σ = 2528604. Its totient is φ = 1685728.

The previous prime is 2107153. The next prime is 2107177. The reversal of 2107165 is 5617012.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2107153) and next prime (2107177).

It can be written as a sum of positive squares in 2 ways, for example, as 700569 + 1406596 = 837^2 + 1186^2 .

It is a cyclic number.

It is not a de Polignac number, because 2107165 - 2⁷ = 2107037 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210712 + ... + 210721.

It is an arithmetic number, because the mean of its divisors is an integer number (632151).

2^2107165 is an apocalyptic number.

It is an amenable number.

2107165 is a deficient number, since it is larger than the sum of its proper divisors (421439).

2107165 is an equidigital number, since it uses as much as digits as its factorization.

2107165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421438.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 2107165 is about 1451.6077293815. The cubic root of 2107165 is about 128.2033916466.

The spelling of 2107165 in words is "two million, one hundred seven thousand, one hundred sixty-five".