143824 has 20 divisors (see below), whose sum is σ = 284580. Its totient is φ = 70400.

The previous prime is 143821. The next prime is 143827. The reversal of 143824 is 428341.

143824 is nontrivially palindromic in base 13.

It is an interprime number because it is at equal distance from previous prime (143821) and next prime (143827).

It can be written as a sum of positive squares in 2 ways, for example, as 90000 + 53824 = 300^2 + 232^2 .

Its product of digits (768) is a multiple of the sum of its prime divisors (192).

It is a junction number, because it is equal to n+sod(n) for n = 143795 and 143804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143821) 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, 1374 + ... + 1474.

It is an arithmetic number, because the mean of its divisors is an integer number (14229).

2¹⁴³⁸²⁴ is an apocalyptic number.

It is an amenable number.

143824 is a deficient number, since it is larger than the sum of its proper divisors (140756).

143824 is a wasteful number, since it uses less digits than its factorization.

143824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198 (or 192 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 143824 is about 379.2413479567. The cubic root of 143824 is about 52.3934649893.

The spelling of 143824 in words is "one hundred forty-three thousand, eight hundred twenty-four".