43124221 has 8 divisors (see below), whose sum is σ = 50120640. Its totient is φ = 36336768.

The previous prime is 43124219. The next prime is 43124231. The reversal of 43124221 is 12242134.

43124221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43124221 - 2¹ = 43124219 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 (43124231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51796 + ... + 52621.

It is an arithmetic number, because the mean of its divisors is an integer number (6265080).

Almost surely, 2^43124221 is an apocalyptic number.

It is an amenable number.

43124221 is a deficient number, since it is larger than the sum of its proper divisors (6996419).

43124221 is a wasteful number, since it uses less digits than its factorization.

43124221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104483.

The product of its digits is 384, while the sum is 19.

The square root of 43124221 is about 6566.9034559677. The cubic root of 43124221 is about 350.6768426345.

Adding to 43124221 its reverse (12242134), we get a palindrome (55366355).

The spelling of 43124221 in words is "forty-three million, one hundred twenty-four thousand, two hundred twenty-one".