11165133 has 8 divisors (see below), whose sum is σ = 17013568. Its totient is φ = 6380064.

The previous prime is 11165123. The next prime is 11165137. The reversal of 11165133 is 33156111.

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

It is not a de Polignac number, because 11165133 - 2⁶ = 11165069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 531673 = 11165133 / (1 + 1 + 1 + 6 + 5 + 1 + 3 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11165137) 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, 265816 + ... + 265857.

It is an arithmetic number, because the mean of its divisors is an integer number (2126696).

Almost surely, 2^11165133 is an apocalyptic number.

It is an amenable number.

11165133 is a deficient number, since it is larger than the sum of its proper divisors (5848435).

11165133 is an equidigital number, since it uses as much as digits as its factorization.

11165133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531683.

The product of its digits is 270, while the sum is 21.

The square root of 11165133 is about 3341.4267910580. The cubic root of 11165133 is about 223.5053725017.

The spelling of 11165133 in words is "eleven million, one hundred sixty-five thousand, one hundred thirty-three".