144243423 has 20 divisors (see below), whose sum is σ = 220065120. Its totient is φ = 94113792.

The previous prime is 144243413. The next prime is 144243439. The reversal of 144243423 is 324342441.

It is a happy number.

It is not a de Polignac number, because 144243423 - 2⁸ = 144243167 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144243413) 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 19 ways as a sum of consecutive naturals, for example, 15138 + ... + 22751.

It is an arithmetic number, because the mean of its divisors is an integer number (11003256).

Almost surely, 2^144243423 is an apocalyptic number.

144243423 is a deficient number, since it is larger than the sum of its proper divisors (75821697).

144243423 is an equidigital number, since it uses as much as digits as its factorization.

144243423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37948 (or 37939 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 144243423 is about 12010.1383422507. The cubic root of 144243423 is about 524.4434592116.

Adding to 144243423 its reverse (324342441), we get a palindrome (468585864).

The spelling of 144243423 in words is "one hundred forty-four million, two hundred forty-three thousand, four hundred twenty-three".