33042241 has 2 divisors, whose sum is σ = 33042242. Its totient is φ = 33042240.

The previous prime is 33042239. The next prime is 33042257. The reversal of 33042241 is 14224033.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30250000 + 2792241 = 5500^2 + 1671^2 .

It is a cyclic number.

It is not a de Polignac number, because 33042241 - 2¹ = 33042239 is a prime.

Together with 33042239, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (33042641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16521120 + 16521121.

It is an arithmetic number, because the mean of its divisors is an integer number (16521121).

Almost surely, 2^33042241 is an apocalyptic number.

It is an amenable number.

33042241 is a deficient number, since it is larger than the sum of its proper divisors (1).

33042241 is an equidigital number, since it uses as much as digits as its factorization.

33042241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 33042241 is about 5748.2380778809. The cubic root of 33042241 is about 320.8902326849.

Adding to 33042241 its reverse (14224033), we get a palindrome (47266274).

The spelling of 33042241 in words is "thirty-three million, forty-two thousand, two hundred forty-one".