33012205 has 8 divisors (see below), whose sum is σ = 39904632. Its totient is φ = 26216448.

The previous prime is 33012191. The next prime is 33012209. The reversal of 33012205 is 50221033.

It can be written as a sum of positive squares in 4 ways, for example, as 7469289 + 25542916 = 2733^2 + 5054^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 33012205 - 2¹⁵ = 32979437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33012209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23412 + ... + 24781.

It is an arithmetic number, because the mean of its divisors is an integer number (4988079).

Almost surely, 2^33012205 is an apocalyptic number.

It is an amenable number.

33012205 is a deficient number, since it is larger than the sum of its proper divisors (6892427).

33012205 is a wasteful number, since it uses less digits than its factorization.

33012205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48335.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 33012205 is about 5745.6248572283. The cubic root of 33012205 is about 320.7929715160.

Adding to 33012205 its reverse (50221033), we get a palindrome (83233238).

The spelling of 33012205 in words is "thirty-three million, twelve thousand, two hundred five".