204342134 has 16 divisors (see below), whose sum is σ = 312368400. Its totient is φ = 100226784.

The previous prime is 204342133. The next prime is 204342139. The reversal of 204342134 is 431243402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204342133) 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 in 7 ways as a sum of consecutive naturals, for example, 64172 + ... + 67280.

It is an arithmetic number, because the mean of its divisors is an integer number (19523025).

Almost surely, 2^204342134 is an apocalyptic number.

204342134 is a deficient number, since it is larger than the sum of its proper divisors (108026266).

204342134 is a wasteful number, since it uses less digits than its factorization.

204342134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3727.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 204342134 is about 14294.8289251743. The cubic root of 204342134 is about 589.0054430717.

Adding to 204342134 its reverse (431243402), we get a palindrome (635585536).

The spelling of 204342134 in words is "two hundred four million, three hundred forty-two thousand, one hundred thirty-four".