204133823 has 2 divisors, whose sum is σ = 204133824. Its totient is φ = 204133822.

The previous prime is 204133819. The next prime is 204133829. The reversal of 204133823 is 328331402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204133823 - 2² = 204133819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204133792 and 204133801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204133829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102066911 + 102066912.

It is an arithmetic number, because the mean of its divisors is an integer number (102066912).

Almost surely, 2^204133823 is an apocalyptic number.

204133823 is a deficient number, since it is larger than the sum of its proper divisors (1).

204133823 is an equidigital number, since it uses as much as digits as its factorization.

204133823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 204133823 is about 14287.5408310878. The cubic root of 204133823 is about 588.8052265244.

The spelling of 204133823 in words is "two hundred four million, one hundred thirty-three thousand, eight hundred twenty-three".