204125907 has 4 divisors (see below), whose sum is σ = 272167880. Its totient is φ = 136083936.

The previous prime is 204125893. The next prime is 204125939. The reversal of 204125907 is 709521402.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 204125907 - 2¹² = 204121811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204125407) 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, 34020982 + ... + 34020987.

It is an arithmetic number, because the mean of its divisors is an integer number (68041970).

Almost surely, 2^204125907 is an apocalyptic number.

204125907 is a deficient number, since it is larger than the sum of its proper divisors (68041973).

204125907 is an equidigital number, since it uses as much as digits as its factorization.

204125907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68041972.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 204125907 is about 14287.2638038219. The cubic root of 204125907 is about 588.7976154349.

The spelling of 204125907 in words is "two hundred four million, one hundred twenty-five thousand, nine hundred seven".