818133 has 16 divisors (see below), whose sum is σ = 1161216. Its totient is φ = 511280.

The previous prime is 818123. The next prime is 818143. The reversal of 818133 is 331818.

It is an interprime number because it is at equal distance from previous prime (818123) and next prime (818143).

It is a cyclic number.

It is not a de Polignac number, because 818133 - 2⁵ = 818101 is a prime.

818133 is a lucky number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (818113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4816 + ... + 4982.

It is an arithmetic number, because the mean of its divisors is an integer number (72576).

2⁸¹⁸¹³³ is an apocalyptic number.

It is an amenable number.

818133 is a deficient number, since it is larger than the sum of its proper divisors (343083).

818133 is a wasteful number, since it uses less digits than its factorization.

818133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264.

The product of its digits is 576, while the sum is 24.

The square root of 818133 is about 904.5070480654. The cubic root of 818133 is about 93.5279259240.

The spelling of 818133 in words is "eight hundred eighteen thousand, one hundred thirty-three".