204201089 has 2 divisors, whose sum is σ = 204201090. Its totient is φ = 204201088.

The previous prime is 204201083. The next prime is 204201119. The reversal of 204201089 is 980102402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162817600 + 41383489 = 12760^2 + 6433^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204201089 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (204201083) 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, 102100544 + 102100545.

It is an arithmetic number, because the mean of its divisors is an integer number (102100545).

Almost surely, 2^204201089 is an apocalyptic number.

It is an amenable number.

204201089 is a deficient number, since it is larger than the sum of its proper divisors (1).

204201089 is an equidigital number, since it uses as much as digits as its factorization.

204201089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 204201089 is about 14289.8946462177. The cubic root of 204201089 is about 588.8698936175.

The spelling of 204201089 in words is "two hundred four million, two hundred one thousand, eighty-nine".