200044561 has 2 divisors, whose sum is σ = 200044562. Its totient is φ = 200044560.

The previous prime is 200044541. The next prime is 200044583. The reversal of 200044561 is 165440002.

It is an a-pointer prime, because the next prime (200044583) can be obtained adding 200044561 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188210961 + 11833600 = 13719^2 + 3440^2 .

It is a cyclic number.

It is not a de Polignac number, because 200044561 - 2⁵ = 200044529 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (200044541) 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, 100022280 + 100022281.

It is an arithmetic number, because the mean of its divisors is an integer number (100022281).

Almost surely, 2^200044561 is an apocalyptic number.

It is an amenable number.

200044561 is a deficient number, since it is larger than the sum of its proper divisors (1).

200044561 is an equidigital number, since it uses as much as digits as its factorization.

200044561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 200044561 is about 14143.7110052489. The cubic root of 200044561 is about 584.8469768021.

Adding to 200044561 its reverse (165440002), we get a palindrome (365484563).

The spelling of 200044561 in words is "two hundred million, forty-four thousand, five hundred sixty-one".