144331959 has 4 divisors (see below), whose sum is σ = 192442616. Its totient is φ = 96221304.

The previous prime is 144331949. The next prime is 144332029. The reversal of 144331959 is 959133441.

It is a happy number.

144331959 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-144331959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144331909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24055324 + ... + 24055329.

It is an arithmetic number, because the mean of its divisors is an integer number (48110654).

Almost surely, 2^144331959 is an apocalyptic number.

144331959 is a deficient number, since it is larger than the sum of its proper divisors (48110657).

144331959 is an equidigital number, since it uses as much as digits as its factorization.

144331959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48110656.

The product of its digits is 58320, while the sum is 39.

The square root of 144331959 is about 12013.8236627645. The cubic root of 144331959 is about 524.5507376544.

The spelling of 144331959 in words is "one hundred forty-four million, three hundred thirty-one thousand, nine hundred fifty-nine".