133056556034921 has 2 divisors, whose sum is σ = 133056556034922. Its totient is φ = 133056556034920.

The previous prime is 133056556034911. The next prime is 133056556035019. The reversal of 133056556034921 is 129430655650331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66931035337321 + 66125520697600 = 8181139^2 + 8131760^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133056556034921 is a prime.

It is not a weakly prime, because it can be changed into another prime (133056556034911) 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, 66528278017460 + 66528278017461.

It is an arithmetic number, because the mean of its divisors is an integer number (66528278017461).

Almost surely, 2^{133056556034921} is an apocalyptic number.

It is an amenable number.

133056556034921 is a deficient number, since it is larger than the sum of its proper divisors (1).

133056556034921 is an equidigital number, since it uses as much as digits as its factorization.

133056556034921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748000, while the sum is 53.

The spelling of 133056556034921 in words is "one hundred thirty-three trillion, fifty-six billion, five hundred fifty-six million, thirty-four thousand, nine hundred twenty-one".