144222223 has 4 divisors (see below), whose sum is σ = 145323288. Its totient is φ = 143121160.

The previous prime is 144222193. The next prime is 144222251. The reversal of 144222223 is 322222441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322222441 = 16349 ⋅19709.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144222223 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144222194 and 144222203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144222283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550336 + ... + 550597.

It is an arithmetic number, because the mean of its divisors is an integer number (36330822).

Almost surely, 2^144222223 is an apocalyptic number.

144222223 is a deficient number, since it is larger than the sum of its proper divisors (1101065).

144222223 is a wasteful number, since it uses less digits than its factorization.

144222223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101064.

The product of its digits is 1536, while the sum is 22.

The square root of 144222223 is about 12009.2557221503. The cubic root of 144222223 is about 524.4177648082.

Adding to 144222223 its reverse (322222441), we get a palindrome (466444664).

The spelling of 144222223 in words is "one hundred forty-four million, two hundred twenty-two thousand, two hundred twenty-three".