144385439 has 8 divisors (see below), whose sum is σ = 157600080. Its totient is φ = 131185600.

The previous prime is 144385429. The next prime is 144385441. The reversal of 144385439 is 934583441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144385439 - 2⁸ = 144385183 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144385396 and 144385405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144385429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30449 + ... + 34869.

It is an arithmetic number, because the mean of its divisors is an integer number (19700010).

Almost surely, 2^144385439 is an apocalyptic number.

144385439 is a deficient number, since it is larger than the sum of its proper divisors (13214641).

144385439 is a wasteful number, since it uses less digits than its factorization.

144385439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7401.

The product of its digits is 207360, while the sum is 41.

The square root of 144385439 is about 12016.0492259311. The cubic root of 144385439 is about 524.6155177384.

It can be divided in two parts, 144 and 385439, that added together give a palindrome (385583).

The spelling of 144385439 in words is "one hundred forty-four million, three hundred eighty-five thousand, four hundred thirty-nine".