144424231 has 16 divisors (see below), whose sum is σ = 176477184. Its totient is φ = 115369344.

The previous prime is 144424223. The next prime is 144424261. The reversal of 144424231 is 132424441.

It is not a de Polignac number, because 144424231 - 2³ = 144424223 is a prime.

It is a super-2 number, since 2×144424231² = 41716716999882722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144424196 and 144424205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144424261) 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, 6366 + ... + 18148.

It is an arithmetic number, because the mean of its divisors is an integer number (11029824).

Almost surely, 2^144424231 is an apocalyptic number.

144424231 is a deficient number, since it is larger than the sum of its proper divisors (32052953).

144424231 is a wasteful number, since it uses less digits than its factorization.

144424231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11910.

The product of its digits is 3072, while the sum is 25.

The square root of 144424231 is about 12017.6632920048. The cubic root of 144424231 is about 524.6624963050.

Adding to 144424231 its reverse (132424441), we get a palindrome (276848672).

The spelling of 144424231 in words is "one hundred forty-four million, four hundred twenty-four thousand, two hundred thirty-one".