144440173 has 2 divisors, whose sum is σ = 144440174. Its totient is φ = 144440172.

The previous prime is 144440159. The next prime is 144440183. The reversal of 144440173 is 371044441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99241444 + 45198729 = 9962^2 + 6723^2 .

It is a cyclic number.

It is not a de Polignac number, because 144440173 - 2⁹ = 144439661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144440183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72220086 + 72220087.

It is an arithmetic number, because the mean of its divisors is an integer number (72220087).

Almost surely, 2^144440173 is an apocalyptic number.

It is an amenable number.

144440173 is a deficient number, since it is larger than the sum of its proper divisors (1).

144440173 is an equidigital number, since it uses as much as digits as its factorization.

144440173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 144440173 is about 12018.3265474025. The cubic root of 144440173 is about 524.6818002258.

The spelling of 144440173 in words is "one hundred forty-four million, four hundred forty thousand, one hundred seventy-three".