2099109 has 16 divisors (see below), whose sum is σ = 3006720. Its totient is φ = 1297920.

The previous prime is 2099093. The next prime is 2099129. The reversal of 2099109 is 9019902.

It is not a de Polignac number, because 2099109 - 2⁴ = 2099093 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2099129) 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, 3769 + ... + 4289.

It is an arithmetic number, because the mean of its divisors is an integer number (187920).

2^2099109 is an apocalyptic number.

It is an amenable number.

2099109 is a deficient number, since it is larger than the sum of its proper divisors (907611).

2099109 is a wasteful number, since it uses less digits than its factorization.

2099109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620.

The product of its (nonzero) digits is 1458, while the sum is 30.

The square root of 2099109 is about 1448.8302177964. The cubic root of 2099109 is about 128.0398028885.

The spelling of 2099109 in words is "two million, ninety-nine thousand, one hundred nine".