204455159 has 2 divisors, whose sum is σ = 204455160. Its totient is φ = 204455158.

The previous prime is 204455149. The next prime is 204455171. The reversal of 204455159 is 951554402.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204455159 - 2²⁰ = 203406583 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204455149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102227579 + 102227580.

It is an arithmetic number, because the mean of its divisors is an integer number (102227580).

Almost surely, 2^204455159 is an apocalyptic number.

204455159 is a deficient number, since it is larger than the sum of its proper divisors (1).

204455159 is an equidigital number, since it uses as much as digits as its factorization.

204455159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 204455159 is about 14298.7817313224. The cubic root of 204455159 is about 589.1140192597.

The spelling of 204455159 in words is "two hundred four million, four hundred fifty-five thousand, one hundred fifty-nine".