2106165 has 8 divisors (see below), whose sum is σ = 3369888. Its totient is φ = 1123280.

The previous prime is 2106149. The next prime is 2106173. The reversal of 2106165 is 5616012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2106165 - 2⁴ = 2106149 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 7 ways as a sum of consecutive naturals, for example, 70191 + ... + 70220.

It is an arithmetic number, because the mean of its divisors is an integer number (421236).

2^2106165 is an apocalyptic number.

It is an amenable number.

2106165 is a deficient number, since it is larger than the sum of its proper divisors (1263723).

2106165 is a wasteful number, since it uses less digits than its factorization.

2106165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140419.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 2106165 is about 1451.2632428336. The cubic root of 2106165 is about 128.1831078881.

The spelling of 2106165 in words is "two million, one hundred six thousand, one hundred sixty-five".