143543 has 6 divisors (see below), whose sum is σ = 151704. Its totient is φ = 135564.

The previous prime is 143537. The next prime is 143551. The reversal of 143543 is 345341.

143543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 143543 - 2⁴ = 143527 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 (143503) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1778 + ... + 1856.

It is an arithmetic number, because the mean of its divisors is an integer number (25284).

2¹⁴³⁵⁴³ is an apocalyptic number.

143543 is a deficient number, since it is larger than the sum of its proper divisors (8161).

143543 is an frugal number, since it uses more digits than its factorization.

143543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181 (or 102 counting only the distinct ones).

The product of its digits is 720, while the sum is 20.

The square root of 143543 is about 378.8706903417. The cubic root of 143543 is about 52.3593210303.

Adding to 143543 its reverse (345341), we get a palindrome (488884).

It can be divided in two parts, 143 and 543, that added together give a palindrome (686).

The spelling of 143543 in words is "one hundred forty-three thousand, five hundred forty-three".