204441361 has 2 divisors, whose sum is σ = 204441362. Its totient is φ = 204441360.

The previous prime is 204441359. The next prime is 204441379. The reversal of 204441361 is 163144402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145443600 + 58997761 = 12060^2 + 7681^2 .

It is a cyclic number.

It is not a de Polignac number, because 204441361 - 2¹ = 204441359 is a prime.

Together with 204441359, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (204441331) 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, 102220680 + 102220681.

It is an arithmetic number, because the mean of its divisors is an integer number (102220681).

Almost surely, 2^204441361 is an apocalyptic number.

It is an amenable number.

204441361 is a deficient number, since it is larger than the sum of its proper divisors (1).

204441361 is an equidigital number, since it uses as much as digits as its factorization.

204441361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 204441361 is about 14298.2992345244. The cubic root of 204441361 is about 589.1007665117.

Adding to 204441361 its reverse (163144402), we get a palindrome (367585763).

The spelling of 204441361 in words is "two hundred four million, four hundred forty-one thousand, three hundred sixty-one".