44144561 has 2 divisors, whose sum is σ = 44144562. Its totient is φ = 44144560.

The previous prime is 44144557. The next prime is 44144627. The reversal of 44144561 is 16544144.

44144561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43230625 + 913936 = 6575^2 + 956^2 .

It is a cyclic number.

It is not a de Polignac number, because 44144561 - 2² = 44144557 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (44144501) 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, 22072280 + 22072281.

It is an arithmetic number, because the mean of its divisors is an integer number (22072281).

Almost surely, 2^44144561 is an apocalyptic number.

It is an amenable number.

44144561 is a deficient number, since it is larger than the sum of its proper divisors (1).

44144561 is an equidigital number, since it uses as much as digits as its factorization.

44144561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7680, while the sum is 29.

The square root of 44144561 is about 6644.1373405432. The cubic root of 44144561 is about 353.4210401905.

The spelling of 44144561 in words is "forty-four million, one hundred forty-four thousand, five hundred sixty-one".