43105133 has 2 divisors, whose sum is σ = 43105134. Its totient is φ = 43105132.

The previous prime is 43105123. The next prime is 43105163. The reversal of 43105133 is 33150134.

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., 32228329 + 10876804 = 5677^2 + 3298^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43105133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43105123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21552566 + 21552567.

It is an arithmetic number, because the mean of its divisors is an integer number (21552567).

Almost surely, 2^43105133 is an apocalyptic number.

It is an amenable number.

43105133 is a deficient number, since it is larger than the sum of its proper divisors (1).

43105133 is an equidigital number, since it uses as much as digits as its factorization.

43105133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 43105133 is about 6565.4499465002. The cubic root of 43105133 is about 350.6250951689.

Adding to 43105133 its reverse (33150134), we get a palindrome (76255267).

The spelling of 43105133 in words is "forty-three million, one hundred five thousand, one hundred thirty-three".