33821133 has 8 divisors (see below), whose sum is σ = 45153696. Its totient is φ = 22518000.

The previous prime is 33821113. The next prime is 33821141. The reversal of 33821133 is 33112833.

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

It is not a de Polignac number, because 33821133 - 2⁸ = 33820877 is a prime.

It is a super-2 number, since 2×33821133² = 2287738074807378, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33821113) 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, 4518 + ... + 9383.

It is an arithmetic number, because the mean of its divisors is an integer number (5644212).

Almost surely, 2^33821133 is an apocalyptic number.

It is an amenable number.

33821133 is a deficient number, since it is larger than the sum of its proper divisors (11332563).

33821133 is a wasteful number, since it uses less digits than its factorization.

33821133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14715.

The product of its digits is 1296, while the sum is 24.

The square root of 33821133 is about 5815.5939507500. The cubic root of 33821133 is about 323.3920833006.

Adding to 33821133 its reverse (33112833), we get a palindrome (66933966).

The spelling of 33821133 in words is "thirty-three million, eight hundred twenty-one thousand, one hundred thirty-three".