133611307 has 2 divisors, whose sum is σ = 133611308. Its totient is φ = 133611306.

The previous prime is 133611299. The next prime is 133611337. The reversal of 133611307 is 703116331.

It is a weak prime.

It is an emirp because it is prime and its reverse (703116331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133611307 - 2³ = 133611299 is a prime.

It is not a weakly prime, because it can be changed into another prime (133611337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66805653 + 66805654.

It is an arithmetic number, because the mean of its divisors is an integer number (66805654).

Almost surely, 2^133611307 is an apocalyptic number.

133611307 is a deficient number, since it is larger than the sum of its proper divisors (1).

133611307 is an equidigital number, since it uses as much as digits as its factorization.

133611307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 133611307 is about 11559.0357296792. The cubic root of 133611307 is about 511.2277315679.

Adding to 133611307 its reverse (703116331), we get a palindrome (836727638).

The spelling of 133611307 in words is "one hundred thirty-three million, six hundred eleven thousand, three hundred seven".