2004591129 has 4 divisors (see below), whose sum is σ = 2672788176. Its totient is φ = 1336394084.

The previous prime is 2004591119. The next prime is 2004591133. The reversal of 2004591129 is 9211954002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2004591129 - 2²⁰ = 2003542553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2004591129.

It is not an unprimeable number, because it can be changed into a prime (2004591119) 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, 334098519 + ... + 334098524.

It is an arithmetic number, because the mean of its divisors is an integer number (668197044).

Almost surely, 2^2004591129 is an apocalyptic number.

It is an amenable number.

2004591129 is a deficient number, since it is larger than the sum of its proper divisors (668197047).

2004591129 is an equidigital number, since it uses as much as digits as its factorization.

2004591129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668197046.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 2004591129 is about 44772.6605083951. The cubic root of 2004591129 is about 1260.8843898125.

The spelling of 2004591129 in words is "two billion, four million, five hundred ninety-one thousand, one hundred twenty-nine".