2009051 has 4 divisors (see below), whose sum is σ = 2191704. Its totient is φ = 1826400.

The previous prime is 2009039. The next prime is 2009069. The reversal of 2009051 is 1509002.

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 2009051 - 2¹⁸ = 1746907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2009011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91310 + ... + 91331.

It is an arithmetic number, because the mean of its divisors is an integer number (547926).

2^2009051 is an apocalyptic number.

2009051 is a deficient number, since it is larger than the sum of its proper divisors (182653).

2009051 is a wasteful number, since it uses less digits than its factorization.

2009051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182652.

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

The square root of 2009051 is about 1417.4099618671. The cubic root of 2009051 is about 126.1818780944.

The spelling of 2009051 in words is "two million, nine thousand, fifty-one".