91133 has 8 divisors (see below), whose sum is σ = 106752. Its totient is φ = 76176.

The previous prime is 91129. The next prime is 91139. The reversal of 91133 is 33119.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 91133 - 2² = 91129 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191 + ... + 467.

It is an arithmetic number, because the mean of its divisors is an integer number (13344).

2⁹¹¹³³ is an apocalyptic number.

It is an amenable number.

91133 is a deficient number, since it is larger than the sum of its proper divisors (15619).

91133 is a wasteful number, since it uses less digits than its factorization.

91133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331.

The product of its digits is 81, while the sum is 17.

The square root of 91133 is about 301.8824274449. The cubic root of 91133 is about 45.0013168339.

The spelling of 91133 in words is "ninety-one thousand, one hundred thirty-three".