43334561 has 2 divisors, whose sum is σ = 43334562. Its totient is φ = 43334560.

The previous prime is 43334539. The next prime is 43334567. The reversal of 43334561 is 16543334.

43334561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32706961 + 10627600 = 5719^2 + 3260^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43334561 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (43334567) 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, 21667280 + 21667281.

It is an arithmetic number, because the mean of its divisors is an integer number (21667281).

Almost surely, 2^43334561 is an apocalyptic number.

It is an amenable number.

43334561 is a deficient number, since it is larger than the sum of its proper divisors (1).

43334561 is an equidigital number, since it uses as much as digits as its factorization.

43334561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 29.

The square root of 43334561 is about 6582.8991333606. The cubic root of 43334561 is about 351.2460646376.

Adding to 43334561 its reverse (16543334), we get a palindrome (59877895).

The spelling of 43334561 in words is "forty-three million, three hundred thirty-four thousand, five hundred sixty-one".