33240133 has 2 divisors, whose sum is σ = 33240134. Its totient is φ = 33240132.

The previous prime is 33240127. The next prime is 33240149. The reversal of 33240133 is 33104233.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21178404 + 12061729 = 4602^2 + 3473^2 .

It is a cyclic number.

It is not a de Polignac number, because 33240133 - 2⁹ = 33239621 is a prime.

It is a super-2 number, since 2×33240133² = 2209812883715378, 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 33240133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33240113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16620066 + 16620067.

It is an arithmetic number, because the mean of its divisors is an integer number (16620067).

Almost surely, 2^33240133 is an apocalyptic number.

It is an amenable number.

33240133 is a deficient number, since it is larger than the sum of its proper divisors (1).

33240133 is an equidigital number, since it uses as much as digits as its factorization.

33240133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 33240133 is about 5765.4256564455. The cubic root of 33240133 is about 321.5295684408.

Adding to 33240133 its reverse (33104233), we get a palindrome (66344366).

The spelling of 33240133 in words is "thirty-three million, two hundred forty thousand, one hundred thirty-three".