441365161 has 2 divisors, whose sum is σ = 441365162. Its totient is φ = 441365160.

The previous prime is 441365153. The next prime is 441365173. The reversal of 441365161 is 161563144.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 363131136 + 78234025 = 19056^2 + 8845^2 .

It is a cyclic number.

It is not a de Polignac number, because 441365161 - 2³ = 441365153 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (441365131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220682580 + 220682581.

It is an arithmetic number, because the mean of its divisors is an integer number (220682581).

Almost surely, 2^441365161 is an apocalyptic number.

It is an amenable number.

441365161 is a deficient number, since it is larger than the sum of its proper divisors (1).

441365161 is an equidigital number, since it uses as much as digits as its factorization.

441365161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 31.

The square root of 441365161 is about 21008.6925104824. The cubic root of 441365161 is about 761.3762925094.

The spelling of 441365161 in words is "four hundred forty-one million, three hundred sixty-five thousand, one hundred sixty-one".