144431223 has 16 divisors (see below), whose sum is σ = 199882080. Its totient is φ = 92656256.

The previous prime is 144431219. The next prime is 144431227. The reversal of 144431223 is 322134441.

It is an interprime number because it is at equal distance from previous prime (144431219) and next prime (144431227).

It is a cyclic number.

It is not a de Polignac number, because 144431223 - 2² = 144431219 is a prime.

It is a super-3 number, since 3×144431223³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 144431193 and 144431202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144431227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24961 + ... + 30197.

It is an arithmetic number, because the mean of its divisors is an integer number (12492630).

Almost surely, 2^144431223 is an apocalyptic number.

144431223 is a deficient number, since it is larger than the sum of its proper divisors (55450857).

144431223 is a wasteful number, since it uses less digits than its factorization.

144431223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5586.

The product of its digits is 2304, while the sum is 24.

The square root of 144431223 is about 12017.9541936221. The cubic root of 144431223 is about 524.6709629844.

Adding to 144431223 its reverse (322134441), we get a palindrome (466565664).

The spelling of 144431223 in words is "one hundred forty-four million, four hundred thirty-one thousand, two hundred twenty-three".