33330133 has 2 divisors, whose sum is σ = 33330134. Its totient is φ = 33330132.

The previous prime is 33330119. The next prime is 33330247. The reversal of 33330133 is 33103333.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28281124 + 5049009 = 5318^2 + 2247^2 .

It is an emirp because it is prime and its reverse (33103333) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33330133 is a prime.

It is a super-2 number, since 2×33330133² = 2221795531595378, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33330133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33330113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16665066 + 16665067.

It is an arithmetic number, because the mean of its divisors is an integer number (16665067).

Almost surely, 2^33330133 is an apocalyptic number.

It is an amenable number.

33330133 is a deficient number, since it is larger than the sum of its proper divisors (1).

33330133 is an equidigital number, since it uses as much as digits as its factorization.

33330133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 729, while the sum is 19.

The square root of 33330133 is about 5773.2255282468. The cubic root of 33330133 is about 321.8194949127.

Adding to 33330133 its reverse (33103333), we get a palindrome (66433466).

The spelling of 33330133 in words is "thirty-three million, three hundred thirty thousand, one hundred thirty-three".