144331 has 4 divisors (see below), whose sum is σ = 157464. Its totient is φ = 131200.

The previous prime is 144323. The next prime is 144341. The reversal of 144331 is 133441.

144331 is nontrivially palindromic in base 13.

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

It is a cyclic number.

It is not a de Polignac number, because 144331 - 2³ = 144323 is a prime.

It is a super-2 number, since 2×144331² = 41662875122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144311) 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, 6550 + ... + 6571.

It is an arithmetic number, because the mean of its divisors is an integer number (39366).

2¹⁴⁴³³¹ is an apocalyptic number.

144331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

144331 is a deficient number, since it is larger than the sum of its proper divisors (13133).

144331 is a wasteful number, since it uses less digits than its factorization.

144331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13132.

The product of its digits is 144, while the sum is 16.

The square root of 144331 is about 379.9091996780. The cubic root of 144331 is about 52.4549575876.

Adding to 144331 its reverse (133441), we get a palindrome (277772).

The spelling of 144331 in words is "one hundred forty-four thousand, three hundred thirty-one".