204007129 has 2 divisors, whose sum is σ = 204007130. Its totient is φ = 204007128.

The previous prime is 204007127. The next prime is 204007147. The reversal of 204007129 is 921700402.

204007129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189200025 + 14807104 = 13755^2 + 3848^2 .

It is a cyclic number.

It is not a de Polignac number, because 204007129 - 2¹ = 204007127 is a prime.

Together with 204007127, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (204007127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102003564 + 102003565.

It is an arithmetic number, because the mean of its divisors is an integer number (102003565).

Almost surely, 2^204007129 is an apocalyptic number.

It is an amenable number.

204007129 is a deficient number, since it is larger than the sum of its proper divisors (1).

204007129 is an equidigital number, since it uses as much as digits as its factorization.

204007129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 204007129 is about 14283.1064198234. The cubic root of 204007129 is about 588.6833889205.

The spelling of 204007129 in words is "two hundred four million, seven thousand, one hundred twenty-nine".