43420133 has 2 divisors, whose sum is σ = 43420134. Its totient is φ = 43420132.

The previous prime is 43420127. The next prime is 43420199. The reversal of 43420133 is 33102434.

43420133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36566209 + 6853924 = 6047^2 + 2618^2 .

It is a cyclic number.

It is not a de Polignac number, because 43420133 - 2²² = 39225829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43420033) 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 as a sum of consecutive naturals, namely, 21710066 + 21710067.

It is an arithmetic number, because the mean of its divisors is an integer number (21710067).

Almost surely, 2^43420133 is an apocalyptic number.

It is an amenable number.

43420133 is a deficient number, since it is larger than the sum of its proper divisors (1).

43420133 is an equidigital number, since it uses as much as digits as its factorization.

43420133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 43420133 is about 6589.3954957947. The cubic root of 43420133 is about 351.4771124433.

Adding to 43420133 its reverse (33102434), we get a palindrome (76522567).

The spelling of 43420133 in words is "forty-three million, four hundred twenty thousand, one hundred thirty-three".