144643 has 4 divisors (see below), whose sum is σ = 146080. Its totient is φ = 143208.

The previous prime is 144629. The next prime is 144659. The reversal of 144643 is 346441.

It is a happy number.

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 144643 - 2⁵ = 144611 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (145643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555 + ... + 772.

It is an arithmetic number, because the mean of its divisors is an integer number (36520).

2¹⁴⁴⁶⁴³ is an apocalyptic number.

144643 is a deficient number, since it is larger than the sum of its proper divisors (1437).

144643 is a wasteful number, since it uses less digits than its factorization.

144643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1436.

The product of its digits is 1152, while the sum is 22.

The square root of 144643 is about 380.3196024398. The cubic root of 144643 is about 52.4927276397.

It can be divided in two parts, 144 and 643, that added together give a palindrome (787).

The spelling of 144643 in words is "one hundred forty-four thousand, six hundred forty-three".