421143124 has 24 divisors (see below), whose sum is σ = 753717888. Its totient is φ = 205807680.

The previous prime is 421143071. The next prime is 421143127. The reversal of 421143124 is 421341124.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 421143095 and 421143104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421143127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219192 + ... + 221104.

It is an arithmetic number, because the mean of its divisors is an integer number (31404912).

Almost surely, 2^421143124 is an apocalyptic number.

It is an amenable number.

421143124 is a deficient number, since it is larger than the sum of its proper divisors (332574764).

421143124 is a wasteful number, since it uses less digits than its factorization.

421143124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3135 (or 3133 counting only the distinct ones).

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

The square root of 421143124 is about 20521.7719507844. The cubic root of 421143124 is about 749.5660446625.

Adding to 421143124 its reverse (421341124), we get a palindrome (842484248).

The spelling of 421143124 in words is "four hundred twenty-one million, one hundred forty-three thousand, one hundred twenty-four".