204344117 has 2 divisors, whose sum is σ = 204344118. Its totient is φ = 204344116.

The previous prime is 204344111. The next prime is 204344159. The reversal of 204344117 is 711443402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 203889841 + 454276 = 14279^2 + 674^2 .

It is a cyclic number.

It is not a de Polignac number, because 204344117 - 2¹⁰ = 204343093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204344111) 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, 102172058 + 102172059.

It is an arithmetic number, because the mean of its divisors is an integer number (102172059).

Almost surely, 2^204344117 is an apocalyptic number.

It is an amenable number.

204344117 is a deficient number, since it is larger than the sum of its proper divisors (1).

204344117 is an equidigital number, since it uses as much as digits as its factorization.

204344117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 204344117 is about 14294.8982857522. The cubic root of 204344117 is about 589.0073483633.

Adding to 204344117 its reverse (711443402), we get a palindrome (915787519).

The spelling of 204344117 in words is "two hundred four million, three hundred forty-four thousand, one hundred seventeen".