43224133 has 2 divisors, whose sum is σ = 43224134. Its totient is φ = 43224132.

The previous prime is 43224121. The next prime is 43224157. The reversal of 43224133 is 33142234.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30713764 + 12510369 = 5542^2 + 3537^2 .

It is a cyclic number.

It is not a de Polignac number, because 43224133 - 2⁵ = 43224101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43224113) 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 as a sum of consecutive naturals, namely, 21612066 + 21612067.

It is an arithmetic number, because the mean of its divisors is an integer number (21612067).

Almost surely, 2^43224133 is an apocalyptic number.

It is an amenable number.

43224133 is a deficient number, since it is larger than the sum of its proper divisors (1).

43224133 is an equidigital number, since it uses as much as digits as its factorization.

43224133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 22.

The square root of 43224133 is about 6574.5062932512. The cubic root of 43224133 is about 350.9474546819.

Adding to 43224133 its reverse (33142234), we get a palindrome (76366367).

The spelling of 43224133 in words is "forty-three million, two hundred twenty-four thousand, one hundred thirty-three".