33105223 has 2 divisors, whose sum is σ = 33105224. Its totient is φ = 33105222.

The previous prime is 33105221. The next prime is 33105253. The reversal of 33105223 is 32250133.

It is a weak prime.

It is an emirp because it is prime and its reverse (32250133) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33105223 - 2¹ = 33105221 is a prime.

Together with 33105221, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 33105223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33105221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16552611 + 16552612.

It is an arithmetic number, because the mean of its divisors is an integer number (16552612).

Almost surely, 2^33105223 is an apocalyptic number.

33105223 is a deficient number, since it is larger than the sum of its proper divisors (1).

33105223 is an equidigital number, since it uses as much as digits as its factorization.

33105223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 33105223 is about 5753.7138441184. The cubic root of 33105223 is about 321.0939868353.

Adding to 33105223 its reverse (32250133), we get a palindrome (65355356).

The spelling of 33105223 in words is "thirty-three million, one hundred five thousand, two hundred twenty-three".