133033133161 has 2 divisors, whose sum is σ = 133033133162. Its totient is φ = 133033133160.

The previous prime is 133033133113. The next prime is 133033133173. The reversal of 133033133161 is 161331330331.

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., 79183146025 + 53849987136 = 281395^2 + 232056^2 .

It is a cyclic number.

It is not a de Polignac number, because 133033133161 - 2⁹ = 133033132649 is a prime.

It is not a weakly prime, because it can be changed into another prime (133033133561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66516566580 + 66516566581.

It is an arithmetic number, because the mean of its divisors is an integer number (66516566581).

Almost surely, 2^133033133161 is an apocalyptic number.

It is an amenable number.

133033133161 is a deficient number, since it is larger than the sum of its proper divisors (1).

133033133161 is an equidigital number, since it uses as much as digits as its factorization.

133033133161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4374, while the sum is 28.

Adding to 133033133161 its reverse (161331330331), we get a palindrome (294364463492).

The spelling of 133033133161 in words is "one hundred thirty-three billion, thirty-three million, one hundred thirty-three thousand, one hundred sixty-one".