441185161 has 2 divisors, whose sum is σ = 441185162. Its totient is φ = 441185160.

The previous prime is 441185141. The next prime is 441185177. The reversal of 441185161 is 161581144.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 361190025 + 79995136 = 19005^2 + 8944^2 .

It is a cyclic number.

It is not a de Polignac number, because 441185161 - 2⁹ = 441184649 is a prime.

It is not a weakly prime, because it can be changed into another prime (441185141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220592580 + 220592581.

It is an arithmetic number, because the mean of its divisors is an integer number (220592581).

Almost surely, 2^441185161 is an apocalyptic number.

It is an amenable number.

441185161 is a deficient number, since it is larger than the sum of its proper divisors (1).

441185161 is an equidigital number, since it uses as much as digits as its factorization.

441185161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3840, while the sum is 31.

The square root of 441185161 is about 21004.4081325802. The cubic root of 441185161 is about 761.2727755280.

The spelling of 441185161 in words is "four hundred forty-one million, one hundred eighty-five thousand, one hundred sixty-one".