133185225096689 has 2 divisors, whose sum is σ = 133185225096690. Its totient is φ = 133185225096688.

The previous prime is 133185225096673. The next prime is 133185225096701. The reversal of 133185225096689 is 986690522581331.

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., 86671351965025 + 46513873131664 = 9309745^2 + 6820108^2 .

It is a cyclic number.

It is not a de Polignac number, because 133185225096689 - 2⁴ = 133185225096673 is a prime.

It is not a weakly prime, because it can be changed into another prime (133185225096089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66592612548344 + 66592612548345.

It is an arithmetic number, because the mean of its divisors is an integer number (66592612548345).

Almost surely, 2^{133185225096689} is an apocalyptic number.

It is an amenable number.

133185225096689 is a deficient number, since it is larger than the sum of its proper divisors (1).

133185225096689 is an equidigital number, since it uses as much as digits as its factorization.

133185225096689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 167961600, while the sum is 68.

The spelling of 133185225096689 in words is "one hundred thirty-three trillion, one hundred eighty-five billion, two hundred twenty-five million, ninety-six thousand, six hundred eighty-nine".