204112885 has 4 divisors (see below), whose sum is σ = 244935468. Its totient is φ = 163290304.

The previous prime is 204112847. The next prime is 204112889. The reversal of 204112885 is 588211402.

204112885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 588211402 = 2 ⋅294105701.

It can be written as a sum of positive squares in 2 ways, for example, as 122788561 + 81324324 = 11081^2 + 9018^2 .

It is a cyclic number.

It is not a de Polignac number, because 204112885 - 2¹⁵ = 204080117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204112889) 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, 20411284 + ... + 20411293.

It is an arithmetic number, because the mean of its divisors is an integer number (61233867).

Almost surely, 2^204112885 is an apocalyptic number.

It is an amenable number.

204112885 is a deficient number, since it is larger than the sum of its proper divisors (40822583).

204112885 is an equidigital number, since it uses as much as digits as its factorization.

204112885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40822582.

The product of its (nonzero) digits is 5120, while the sum is 31.

The square root of 204112885 is about 14286.8080759839. The cubic root of 204112885 is about 588.7850945914.

The spelling of 204112885 in words is "two hundred four million, one hundred twelve thousand, eight hundred eighty-five".