144447173 has 12 divisors (see below), whose sum is σ = 161812260. Its totient is φ = 128733696.

The previous prime is 144447161. The next prime is 144447229. The reversal of 144447173 is 371744441.

It can be written as a sum of positive squares in 6 ways, for example, as 35307364 + 109139809 = 5942^2 + 10447^2 .

It is not a de Polignac number, because 144447173 - 2¹² = 144443077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144440173) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9836 + ... + 19637.

It is an arithmetic number, because the mean of its divisors is an integer number (13484355).

Almost surely, 2^144447173 is an apocalyptic number.

144447173 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

144447173 is a deficient number, since it is larger than the sum of its proper divisors (17365087).

144447173 is a wasteful number, since it uses less digits than its factorization.

144447173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29528 (or 29515 counting only the distinct ones).

The product of its digits is 37632, while the sum is 35.

The square root of 144447173 is about 12018.6177657832. The cubic root of 144447173 is about 524.6902759686.

The spelling of 144447173 in words is "one hundred forty-four million, four hundred forty-seven thousand, one hundred seventy-three".