204534136 has 8 divisors (see below), whose sum is σ = 383501520. Its totient is φ = 102267064.

The previous prime is 204534131. The next prime is 204534137. The reversal of 204534136 is 631435402.

204534136 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204534131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12783376 + ... + 12783391.

It is an arithmetic number, because the mean of its divisors is an integer number (47937690).

Almost surely, 2^204534136 is an apocalyptic number.

It is an amenable number.

204534136 is a deficient number, since it is larger than the sum of its proper divisors (178967384).

204534136 is a wasteful number, since it uses less digits than its factorization.

204534136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25566773 (or 25566769 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 204534136 is about 14301.5431335223. The cubic root of 204534136 is about 589.1898638747.

Adding to 204534136 its reverse (631435402), we get a palindrome (835969538).

The spelling of 204534136 in words is "two hundred four million, five hundred thirty-four thousand, one hundred thirty-six".