33020105 has 4 divisors (see below), whose sum is σ = 39624132. Its totient is φ = 26416080.

The previous prime is 33020089. The next prime is 33020107. The reversal of 33020105 is 50102033.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10995856 + 22024249 = 3316^2 + 4693^2 .

It is not a de Polignac number, because 33020105 - 2⁴ = 33020089 is a prime.

It is a super-2 number, since 2×33020105² = 2180654668422050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 33020105.

It is not an unprimeable number, because it can be changed into a prime (33020107) 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, 3302006 + ... + 3302015.

It is an arithmetic number, because the mean of its divisors is an integer number (9906033).

Almost surely, 2^33020105 is an apocalyptic number.

It is an amenable number.

33020105 is a deficient number, since it is larger than the sum of its proper divisors (6604027).

33020105 is an equidigital number, since it uses as much as digits as its factorization.

33020105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6604026.

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 33020105 is about 5746.3122957250. The cubic root of 33020105 is about 320.8185586420.

Adding to 33020105 its reverse (50102033), we get a palindrome (83122138).

The spelling of 33020105 in words is "thirty-three million, twenty thousand, one hundred five".