33012449 has 2 divisors, whose sum is σ = 33012450. Its totient is φ = 33012448.

The previous prime is 33012437. The next prime is 33012451. The reversal of 33012449 is 94421033.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21669025 + 11343424 = 4655^2 + 3368^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33012449 is a prime.

It is a Sophie Germain prime.

Together with 33012451, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (33012149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16506224 + 16506225.

It is an arithmetic number, because the mean of its divisors is an integer number (16506225).

Almost surely, 2^33012449 is an apocalyptic number.

It is an amenable number.

33012449 is a deficient number, since it is larger than the sum of its proper divisors (1).

33012449 is an equidigital number, since it uses as much as digits as its factorization.

33012449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 33012449 is about 5745.6460907369. The cubic root of 33012449 is about 320.7937618630.

The spelling of 33012449 in words is "thirty-three million, twelve thousand, four hundred forty-nine".