133507133 has 2 divisors, whose sum is σ = 133507134. Its totient is φ = 133507132.

The previous prime is 133507123. The next prime is 133507139. The reversal of 133507133 is 331705331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114340249 + 19166884 = 10693^2 + 4378^2 .

It is a cyclic number.

It is not a de Polignac number, because 133507133 - 2¹⁶ = 133441597 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133507139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66753566 + 66753567.

It is an arithmetic number, because the mean of its divisors is an integer number (66753567).

Almost surely, 2^133507133 is an apocalyptic number.

It is an amenable number.

133507133 is a deficient number, since it is larger than the sum of its proper divisors (1).

133507133 is an equidigital number, since it uses as much as digits as its factorization.

133507133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2835, while the sum is 26.

The square root of 133507133 is about 11554.5286792668. The cubic root of 133507133 is about 511.0948324245.

The spelling of 133507133 in words is "one hundred thirty-three million, five hundred seven thousand, one hundred thirty-three".