144544231 has 16 divisors (see below), whose sum is σ = 158165280. Its totient is φ = 131299200.

The previous prime is 144544189. The next prime is 144544243. The reversal of 144544231 is 132445441.

It is a cyclic number.

It is not a de Polignac number, because 144544231 - 2¹⁵ = 144511463 is a prime.

It is a super-2 number, since 2×144544231² = 41786069430762722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 144544231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144544261) 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, 371385 + ... + 371773.

It is an arithmetic number, because the mean of its divisors is an integer number (9885330).

Almost surely, 2^144544231 is an apocalyptic number.

144544231 is a deficient number, since it is larger than the sum of its proper divisors (13621049).

144544231 is a wasteful number, since it uses less digits than its factorization.

144544231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786.

The product of its digits is 7680, while the sum is 28.

The square root of 144544231 is about 12022.6549064672. The cubic root of 144544231 is about 524.8077675654.

Adding to 144544231 its reverse (132445441), we get a palindrome (276989672).

The spelling of 144544231 in words is "one hundred forty-four million, five hundred forty-four thousand, two hundred thirty-one".