4442161 has 2 divisors, whose sum is σ = 4442162. Its totient is φ = 4442160.

The previous prime is 4442159. The next prime is 4442171. The reversal of 4442161 is 1612444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3825936 + 616225 = 1956^2 + 785^2 .

It is a cyclic number.

It is not a de Polignac number, because 4442161 - 2¹ = 4442159 is a prime.

Together with 4442159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4442101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2221080 + 2221081.

It is an arithmetic number, because the mean of its divisors is an integer number (2221081).

Almost surely, 2^4442161 is an apocalyptic number.

It is an amenable number.

4442161 is a deficient number, since it is larger than the sum of its proper divisors (1).

4442161 is an equidigital number, since it uses as much as digits as its factorization.

4442161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 768, while the sum is 22.

The square root of 4442161 is about 2107.6434707986. The cubic root of 4442161 is about 164.3859761739.

The spelling of 4442161 in words is "four million, four hundred forty-two thousand, one hundred sixty-one".