204434133 has 4 divisors (see below), whose sum is σ = 272578848. Its totient is φ = 136289420.

The previous prime is 204434123. The next prime is 204434149. The reversal of 204434133 is 331434402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 204434133 - 2⁴ = 204434117 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204434123) 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, 34072353 + ... + 34072358.

It is an arithmetic number, because the mean of its divisors is an integer number (68144712).

Almost surely, 2^204434133 is an apocalyptic number.

It is an amenable number.

204434133 is a deficient number, since it is larger than the sum of its proper divisors (68144715).

204434133 is an equidigital number, since it uses as much as digits as its factorization.

204434133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68144714.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 204434133 is about 14298.0464749559. The cubic root of 204434133 is about 589.0938239007.

Adding to 204434133 its reverse (331434402), we get a palindrome (535868535).

The spelling of 204434133 in words is "two hundred four million, four hundred thirty-four thousand, one hundred thirty-three".