144443223 has 16 divisors (see below), whose sum is σ = 217186560. Its totient is φ = 94857048.

The previous prime is 144443219. The next prime is 144443281. The reversal of 144443223 is 322344441.

It is a happy number.

It is not a de Polignac number, because 144443223 - 2² = 144443219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144443293) 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 in 15 ways as a sum of consecutive naturals, for example, 38115 + ... + 41732.

It is an arithmetic number, because the mean of its divisors is an integer number (13574160).

Almost surely, 2^144443223 is an apocalyptic number.

144443223 is a deficient number, since it is larger than the sum of its proper divisors (72743337).

144443223 is an equidigital number, since it uses as much as digits as its factorization.

144443223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79923 (or 79917 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 144443223 is about 12018.4534362787. The cubic root of 144443223 is about 524.6854932617.

Adding to 144443223 its reverse (322344441), we get a palindrome (466787664).

The spelling of 144443223 in words is "one hundred forty-four million, four hundred forty-three thousand, two hundred twenty-three".