2009129 has 8 divisors (see below), whose sum is σ = 2062848. Its totient is φ = 1956240.

The previous prime is 2009113. The next prime is 2009167. The reversal of 2009129 is 9219002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2009129 - 2⁴ = 2009113 is a prime.

It is a super-3 number, since 3×2009129³ = 24330146377933361067, which contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2069129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10424 + ... + 10614.

It is an arithmetic number, because the mean of its divisors is an integer number (257856).

2^2009129 is an apocalyptic number.

It is an amenable number.

2009129 is a deficient number, since it is larger than the sum of its proper divisors (53719).

2009129 is a wasteful number, since it uses less digits than its factorization.

2009129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 2009129 is about 1417.4374765752. The cubic root of 2009129 is about 126.1835110476.

The spelling of 2009129 in words is "two million, nine thousand, one hundred twenty-nine".