2012109 has 24 divisors (see below), whose sum is σ = 3089856. Its totient is φ = 1161600.

The previous prime is 2012093. The next prime is 2012113. The reversal of 2012109 is 9012102.

It is a happy number.

It is not a de Polignac number, because 2012109 - 2⁴ = 2012093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012159) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8229 + ... + 8469.

It is an arithmetic number, because the mean of its divisors is an integer number (128744).

2^2012109 is an apocalyptic number.

It is an amenable number.

2012109 is a deficient number, since it is larger than the sum of its proper divisors (1077747).

2012109 is a wasteful number, since it uses less digits than its factorization.

2012109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 2012109 is about 1418.4882798247. The cubic root of 2012109 is about 126.2458666098.

The spelling of 2012109 in words is "two million, twelve thousand, one hundred nine".