1444442173 has 2 divisors, whose sum is σ = 1444442174. Its totient is φ = 1444442172.

The previous prime is 1444442171. The next prime is 1444442183. The reversal of 1444442173 is 3712444441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 790003449 + 654438724 = 28107^2 + 25582^2 .

It is an emirp because it is prime and its reverse (3712444441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1444442173 - 2¹ = 1444442171 is a prime.

It is a super-2 number, since 2×1444442173² = 4172826382281923858, which contains 22 as substring.

Together with 1444442171, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1444442171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722221086 + 722221087.

It is an arithmetic number, because the mean of its divisors is an integer number (722221087).

Almost surely, 2^1444442173 is an apocalyptic number.

It is an amenable number.

1444442173 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444442173 is an equidigital number, since it uses as much as digits as its factorization.

1444442173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43008, while the sum is 34.

The square root of 1444442173 is about 38005.8176204644. The cubic root of 1444442173 is about 1130.4032218033.

The spelling of 1444442173 in words is "one billion, four hundred forty-four million, four hundred forty-two thousand, one hundred seventy-three".