2009535 has 32 divisors (see below), whose sum is σ = 3697920. Its totient is φ = 921600.

The previous prime is 2009509. The next prime is 2009537. The reversal of 2009535 is 5359002.

2009535 is nontrivially palindromic in base 14.

It is not a de Polignac number, because 2009535 - 2⁵ = 2009503 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 (2009537) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2815 + ... + 3455.

It is an arithmetic number, because the mean of its divisors is an integer number (115560).

2^2009535 is an apocalyptic number.

2009535 is a deficient number, since it is larger than the sum of its proper divisors (1688385).

2009535 is a wasteful number, since it uses less digits than its factorization.

2009535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679.

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 2009535 is about 1417.5806855343. The cubic root of 2009535 is about 126.1920100962.

The spelling of 2009535 in words is "two million, nine thousand, five hundred thirty-five".