2109085 has 16 divisors (see below), whose sum is σ = 2852352. Its totient is φ = 1483200.

The previous prime is 2109067. The next prime is 2109097. The reversal of 2109085 is 5809012.

It is not a de Polignac number, because 2109085 - 2⁵ = 2109053 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 1087 + ... + 2323.

It is an arithmetic number, because the mean of its divisors is an integer number (178272).

2^2109085 is an apocalyptic number.

It is an amenable number.

2109085 is a deficient number, since it is larger than the sum of its proper divisors (743267).

2109085 is a wasteful number, since it uses less digits than its factorization.

2109085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 2109085 is about 1452.2689144921. The cubic root of 2109085 is about 128.2423184807.

The spelling of 2109085 in words is "two million, one hundred nine thousand, eighty-five".