2009135 has 4 divisors (see below), whose sum is σ = 2410968. Its totient is φ = 1607304.

The previous prime is 2009113. The next prime is 2009167. The reversal of 2009135 is 5319002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2009135 - 2⁸ = 2008879 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 3 ways as a sum of consecutive naturals, for example, 200909 + ... + 200918.

It is an arithmetic number, because the mean of its divisors is an integer number (602742).

2^2009135 is an apocalyptic number.

2009135 is a deficient number, since it is larger than the sum of its proper divisors (401833).

2009135 is an equidigital number, since it uses as much as digits as its factorization.

2009135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401832.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 2009135 is about 1417.4395930691. The cubic root of 2009135 is about 126.1836366577.

The spelling of 2009135 in words is "two million, nine thousand, one hundred thirty-five".