144432223 has 4 divisors (see below), whose sum is σ = 155542408. Its totient is φ = 133322040.

The previous prime is 144432191. The next prime is 144432229. The reversal of 144432223 is 322234441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322234441 = 367 ⋅878023.

It is a cyclic number.

It is not a de Polignac number, because 144432223 - 2⁵ = 144432191 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 (144432229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5555073 + ... + 5555098.

It is an arithmetic number, because the mean of its divisors is an integer number (38885602).

Almost surely, 2^144432223 is an apocalyptic number.

144432223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

144432223 is a deficient number, since it is larger than the sum of its proper divisors (11110185).

144432223 is a wasteful number, since it uses less digits than its factorization.

144432223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11110184.

The product of its digits is 4608, while the sum is 25.

The square root of 144432223 is about 12017.9957979690. The cubic root of 144432223 is about 524.6721738715.

Adding to 144432223 its reverse (322234441), we get a palindrome (466666664).

The spelling of 144432223 in words is "one hundred forty-four million, four hundred thirty-two thousand, two hundred twenty-three".