133797511 has 2 divisors, whose sum is σ = 133797512. Its totient is φ = 133797510.

The previous prime is 133797491. The next prime is 133797529. The reversal of 133797511 is 115797331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133797511 - 2⁷ = 133797383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133797551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66898755 + 66898756.

It is an arithmetic number, because the mean of its divisors is an integer number (66898756).

Almost surely, 2^133797511 is an apocalyptic number.

133797511 is a deficient number, since it is larger than the sum of its proper divisors (1).

133797511 is an equidigital number, since it uses as much as digits as its factorization.

133797511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19845, while the sum is 37.

The square root of 133797511 is about 11567.0874034910. The cubic root of 133797511 is about 511.4651078398.

The spelling of 133797511 in words is "one hundred thirty-three million, seven hundred ninety-seven thousand, five hundred eleven".