143124021 has 12 divisors (see below), whose sum is σ = 206919648. Its totient is φ = 95330664.

The previous prime is 143124013. The next prime is 143124031. The reversal of 143124021 is 120421341.

143124021 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 143124021 - 2³ = 143124013 is a prime.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 143123985 and 143124003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143124011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4506 + ... + 17508.

It is an arithmetic number, because the mean of its divisors is an integer number (17243304).

Almost surely, 2^143124021 is an apocalyptic number.

It is an amenable number.

143124021 is a deficient number, since it is larger than the sum of its proper divisors (63795627).

143124021 is a wasteful number, since it uses less digits than its factorization.

143124021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14232 (or 14229 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 143124021 is about 11963.4451977681. The cubic root of 143124021 is about 523.0832856432.

Adding to 143124021 its reverse (120421341), we get a palindrome (263545362).

It can be divided in two parts, 1431 and 24021, that added together give a palindrome (25452).

The spelling of 143124021 in words is "one hundred forty-three million, one hundred twenty-four thousand, twenty-one".