144459943 has 4 divisors (see below), whose sum is σ = 144484360. Its totient is φ = 144435528.

The previous prime is 144459929. The next prime is 144459947. The reversal of 144459943 is 349954441.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 349954441 = 9923 ⋅35267.

It is a cyclic number.

It is not a de Polignac number, because 144459943 - 2¹³ = 144451751 is a prime.

It is a super-3 number, since 3×144459943³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144459943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144459947) 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, 2896 + ... + 17242.

It is an arithmetic number, because the mean of its divisors is an integer number (36121090).

Almost surely, 2^144459943 is an apocalyptic number.

144459943 is a deficient number, since it is larger than the sum of its proper divisors (24417).

144459943 is a wasteful number, since it uses less digits than its factorization.

144459943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24416.

The product of its digits is 311040, while the sum is 43.

The square root of 144459943 is about 12019.1490131373. The cubic root of 144459943 is about 524.7057374398.

The spelling of 144459943 in words is "one hundred forty-four million, four hundred fifty-nine thousand, nine hundred forty-three".