204015129 has 8 divisors (see below), whose sum is σ = 283847232. Its totient is φ = 130096560.

The previous prime is 204015107. The next prime is 204015131. The reversal of 204015129 is 921510402.

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

It is not a de Polignac number, because 204015129 - 2⁷ = 204015001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204015099 and 204015108.

It is not an unprimeable number, because it can be changed into a prime (204015529) 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, 1478302 + ... + 1478439.

It is an arithmetic number, because the mean of its divisors is an integer number (35480904).

Almost surely, 2^204015129 is an apocalyptic number.

It is an amenable number.

204015129 is a deficient number, since it is larger than the sum of its proper divisors (79832103).

204015129 is a wasteful number, since it uses less digits than its factorization.

204015129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2956767.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 204015129 is about 14283.3864682014. The cubic root of 204015129 is about 588.6910837587.

The spelling of 204015129 in words is "two hundred four million, fifteen thousand, one hundred twenty-nine".