2009105 has 16 divisors (see below), whose sum is σ = 2782080. Its totient is φ = 1364352.

The previous prime is 2009093. The next prime is 2009107. The reversal of 2009105 is 5019002.

It is a cyclic number.

It is not a de Polignac number, because 2009105 - 2¹⁰ = 2008081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2009107) 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, 4586 + ... + 5004.

It is an arithmetic number, because the mean of its divisors is an integer number (173880).

2^2009105 is an apocalyptic number.

It is an amenable number.

2009105 is a deficient number, since it is larger than the sum of its proper divisors (772975).

2009105 is a wasteful number, since it uses less digits than its factorization.

2009105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 2009105 is about 1417.4290105681. The cubic root of 2009105 is about 126.1830086050.

The spelling of 2009105 in words is "two million, nine thousand, one hundred five".