204112134 has 12 divisors (see below), whose sum is σ = 442242996. Its totient is φ = 68037372.

The previous prime is 204112127. The next prime is 204112163. The reversal of 204112134 is 431211402.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 11339563 = 204112134 / (2 + 0 + 4 + 1 + 1 + 2 + 1 + 3 + 4).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5669764 + ... + 5669799.

It is an arithmetic number, because the mean of its divisors is an integer number (36853583).

Almost surely, 2^204112134 is an apocalyptic number.

204112134 is an abundant number, since it is smaller than the sum of its proper divisors (238130862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204112134 is a wasteful number, since it uses less digits than its factorization.

204112134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11339571 (or 11339568 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 204112134 is about 14286.7817929721. The cubic root of 204112134 is about 588.7843724777.

Adding to 204112134 its reverse (431211402), we get a palindrome (635323536).

The spelling of 204112134 in words is "two hundred four million, one hundred twelve thousand, one hundred thirty-four".