43543133134573 has 2 divisors, whose sum is σ = 43543133134574. Its totient is φ = 43543133134572.

The previous prime is 43543133134531. The next prime is 43543133134583. The reversal of 43543133134573 is 37543133134534.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43260112326564 + 283020808009 = 6577242^2 + 531997^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43543133134573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43543133134583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21771566567286 + 21771566567287.

It is an arithmetic number, because the mean of its divisors is an integer number (21771566567287).

Almost surely, 2^{43543133134573} is an apocalyptic number.

It is an amenable number.

43543133134573 is a deficient number, since it is larger than the sum of its proper divisors (1).

43543133134573 is an equidigital number, since it uses as much as digits as its factorization.

43543133134573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8164800, while the sum is 49.

The spelling of 43543133134573 in words is "forty-three trillion, five hundred forty-three billion, one hundred thirty-three million, one hundred thirty-four thousand, five hundred seventy-three".