442522163 has 2 divisors, whose sum is σ = 442522164. Its totient is φ = 442522162.

The previous prime is 442522153. The next prime is 442522169. The reversal of 442522163 is 361225244.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 442522163 - 2⁸ = 442521907 is a prime.

It is not a weakly prime, because it can be changed into another prime (442522169) 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, 221261081 + 221261082.

It is an arithmetic number, because the mean of its divisors is an integer number (221261082).

Almost surely, 2^442522163 is an apocalyptic number.

442522163 is a deficient number, since it is larger than the sum of its proper divisors (1).

442522163 is an equidigital number, since it uses as much as digits as its factorization.

442522163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 29.

The square root of 442522163 is about 21036.2107566929. The cubic root of 442522163 is about 762.0410068567.

The spelling of 442522163 in words is "four hundred forty-two million, five hundred twenty-two thousand, one hundred sixty-three".