9004129 has 4 divisors (see below), whose sum is σ = 9011860. Its totient is φ = 8996400.

The previous prime is 9004111. The next prime is 9004147. The reversal of 9004129 is 9214009.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (9004111) and next prime (9004147).

It can be written as a sum of positive squares in 2 ways, for example, as 2729104 + 6275025 = 1652^2 + 2505^2 .

It is a cyclic number.

It is not a de Polignac number, because 9004129 - 2⁵ = 9004097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9004189) 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, 1722 + ... + 4579.

It is an arithmetic number, because the mean of its divisors is an integer number (2252965).

Almost surely, 2^9004129 is an apocalyptic number.

It is an amenable number.

9004129 is a deficient number, since it is larger than the sum of its proper divisors (7731).

9004129 is a wasteful number, since it uses less digits than its factorization.

9004129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7730.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 9004129 is about 3000.6880877559. The cubic root of 9004129 is about 208.0401873163.

The spelling of 9004129 in words is "nine million, four thousand, one hundred twenty-nine".