133911199 has 2 divisors, whose sum is σ = 133911200. Its totient is φ = 133911198.

The previous prime is 133911191. The next prime is 133911203. The reversal of 133911199 is 991119331.

It is a strong prime.

It is an emirp because it is prime and its reverse (991119331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133911199 - 2³ = 133911191 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 (133911191) 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, 66955599 + 66955600.

It is an arithmetic number, because the mean of its divisors is an integer number (66955600).

Almost surely, 2^133911199 is an apocalyptic number.

133911199 is a deficient number, since it is larger than the sum of its proper divisors (1).

133911199 is an equidigital number, since it uses as much as digits as its factorization.

133911199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6561, while the sum is 37.

The square root of 133911199 is about 11572.0006481161. Note that the first 3 decimals coincide. The cubic root of 133911199 is about 511.6099311208.

The spelling of 133911199 in words is "one hundred thirty-three million, nine hundred eleven thousand, one hundred ninety-nine".