133340443 has 2 divisors, whose sum is σ = 133340444. Its totient is φ = 133340442.

The previous prime is 133340437. The next prime is 133340477. The reversal of 133340443 is 344043331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133340443 - 2⁹ = 133339931 is a prime.

It is not a weakly prime, because it can be changed into another prime (133340483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66670221 + 66670222.

It is an arithmetic number, because the mean of its divisors is an integer number (66670222).

Almost surely, 2^133340443 is an apocalyptic number.

133340443 is a deficient number, since it is larger than the sum of its proper divisors (1).

133340443 is an equidigital number, since it uses as much as digits as its factorization.

133340443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 25.

The square root of 133340443 is about 11547.3132372860. The cubic root of 133340443 is about 510.8820351087.

Adding to 133340443 its reverse (344043331), we get a palindrome (477383774).

The spelling of 133340443 in words is "one hundred thirty-three million, three hundred forty thousand, four hundred forty-three".