33133223 has 4 divisors (see below), whose sum is σ = 33217080. Its totient is φ = 33049368.

The previous prime is 33133193. The next prime is 33133231. The reversal of 33133223 is 32233133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32233133 = 83 ⋅388351.

It is a cyclic number.

It is not a de Polignac number, because 33133223 - 2¹² = 33129127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33133195 and 33133204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33133253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41333 + ... + 42126.

It is an arithmetic number, because the mean of its divisors is an integer number (8304270).

Almost surely, 2^33133223 is an apocalyptic number.

33133223 is a deficient number, since it is larger than the sum of its proper divisors (83857).

33133223 is an equidigital number, since it uses as much as digits as its factorization.

33133223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83856.

The product of its digits is 972, while the sum is 20.

The square root of 33133223 is about 5756.1465408726. The cubic root of 33133223 is about 321.1844871379.

Adding to 33133223 its reverse (32233133), we get a palindrome (65366356).

The spelling of 33133223 in words is "thirty-three million, one hundred thirty-three thousand, two hundred twenty-three".