133481494943 has 2 divisors, whose sum is σ = 133481494944. Its totient is φ = 133481494942.

The previous prime is 133481494933. The next prime is 133481494961. The reversal of 133481494943 is 349494184331.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (349494184331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133481494943 - 2⁸ = 133481494687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133481494933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66740747471 + 66740747472.

It is an arithmetic number, because the mean of its divisors is an integer number (66740747472).

Almost surely, 2^133481494943 is an apocalyptic number.

133481494943 is a deficient number, since it is larger than the sum of its proper divisors (1).

133481494943 is an equidigital number, since it uses as much as digits as its factorization.

133481494943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4478976, while the sum is 53.

The spelling of 133481494943 in words is "one hundred thirty-three billion, four hundred eighty-one million, four hundred ninety-four thousand, nine hundred forty-three".