133366263 has 16 divisors (see below), whose sum is σ = 191537280. Its totient is φ = 82270944.

The previous prime is 133366249. The next prime is 133366283. The reversal of 133366263 is 362663331.

It is not a de Polignac number, because 133366263 - 2⁸ = 133366007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133366243) 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 in 15 ways as a sum of consecutive naturals, for example, 24756 + ... + 29657.

It is an arithmetic number, because the mean of its divisors is an integer number (11971080).

Almost surely, 2^133366263 is an apocalyptic number.

133366263 is a deficient number, since it is larger than the sum of its proper divisors (58171017).

133366263 is a wasteful number, since it uses less digits than its factorization.

133366263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54478.

The product of its digits is 34992, while the sum is 33.

The square root of 133366263 is about 11548.4311921577. The cubic root of 133366263 is about 510.9150086575.

The spelling of 133366263 in words is "one hundred thirty-three million, three hundred sixty-six thousand, two hundred sixty-three".