33105243 has 4 divisors (see below), whose sum is σ = 44140328. Its totient is φ = 22070160.

The previous prime is 33105223. The next prime is 33105253. The reversal of 33105243 is 34250133.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 33105243 - 2¹⁷ = 32974171 is a prime.

It is a super-2 number, since 2×33105243² = 2191914228178098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33105223) 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, 5517538 + ... + 5517543.

It is an arithmetic number, because the mean of its divisors is an integer number (11035082).

Almost surely, 2^33105243 is an apocalyptic number.

33105243 is a deficient number, since it is larger than the sum of its proper divisors (11035085).

33105243 is a wasteful number, since it uses less digits than its factorization.

33105243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11035084.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 33105243 is about 5753.7155821260. The cubic root of 33105243 is about 321.0940514966.

Adding to 33105243 its reverse (34250133), we get a palindrome (67355376).

The spelling of 33105243 in words is "thirty-three million, one hundred five thousand, two hundred forty-three".