33072241 has 2 divisors, whose sum is σ = 33072242. Its totient is φ = 33072240.

The previous prime is 33072239. The next prime is 33072251. The reversal of 33072241 is 14227033.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27878400 + 5193841 = 5280^2 + 2279^2 .

It is a cyclic number.

It is not a de Polignac number, because 33072241 - 2¹ = 33072239 is a prime.

Together with 33072239, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (33072251) 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, 16536120 + 16536121.

It is an arithmetic number, because the mean of its divisors is an integer number (16536121).

Almost surely, 2^33072241 is an apocalyptic number.

It is an amenable number.

33072241 is a deficient number, since it is larger than the sum of its proper divisors (1).

33072241 is an equidigital number, since it uses as much as digits as its factorization.

33072241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 33072241 is about 5750.8469810977. The cubic root of 33072241 is about 320.9873184627.

Adding to 33072241 its reverse (14227033), we get a palindrome (47299274).

The spelling of 33072241 in words is "thirty-three million, seventy-two thousand, two hundred forty-one".