441242161 has 2 divisors, whose sum is σ = 441242162. Its totient is φ = 441242160.

The previous prime is 441242147. The next prime is 441242167. The reversal of 441242161 is 161242144.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 271096225 + 170145936 = 16465^2 + 13044^2 .

It is a cyclic number.

It is not a de Polignac number, because 441242161 - 2⁹ = 441241649 is a prime.

It is not a weakly prime, because it can be changed into another prime (441242167) 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, 220621080 + 220621081.

It is an arithmetic number, because the mean of its divisors is an integer number (220621081).

Almost surely, 2^441242161 is an apocalyptic number.

It is an amenable number.

441242161 is a deficient number, since it is larger than the sum of its proper divisors (1).

441242161 is an equidigital number, since it uses as much as digits as its factorization.

441242161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1536, while the sum is 25.

The square root of 441242161 is about 21005.7649467950. The cubic root of 441242161 is about 761.3055589513.

The spelling of 441242161 in words is "four hundred forty-one million, two hundred forty-two thousand, one hundred sixty-one".