204134236 has 6 divisors (see below), whose sum is σ = 357234920. Its totient is φ = 102067116.

The previous prime is 204134197. The next prime is 204134237. The reversal of 204134236 is 632431402.

It is a self number, because there is not a number n which added to its sum of digits gives 204134236.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204134237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25516776 + ... + 25516783.

Almost surely, 2^204134236 is an apocalyptic number.

It is an amenable number.

204134236 is a deficient number, since it is larger than the sum of its proper divisors (153100684).

204134236 is a wasteful number, since it uses less digits than its factorization.

204134236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51033563 (or 51033561 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 204134236 is about 14287.5552842325. Note that the first 3 decimals coincide. The cubic root of 204134236 is about 588.8056236110.

Adding to 204134236 its reverse (632431402), we get a palindrome (836565638).

It can be divided in two parts, 20413 and 4236, that added together give a square (24649 = 157²).

The spelling of 204134236 in words is "two hundred four million, one hundred thirty-four thousand, two hundred thirty-six".