33241213 has 2 divisors, whose sum is σ = 33241214. Its totient is φ = 33241212.

The previous prime is 33241211. The next prime is 33241231. The reversal of 33241213 is 31214233.

Together with next prime (33241231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26491609 + 6749604 = 5147^2 + 2598^2 .

It is an emirp because it is prime and its reverse (31214233) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33241213 - 2¹ = 33241211 is a prime.

It is a super-2 number, since 2×33241213² = 2209956483422738, which contains 22 as substring.

Together with 33241211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33241211) 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, 16620606 + 16620607.

It is an arithmetic number, because the mean of its divisors is an integer number (16620607).

Almost surely, 2^33241213 is an apocalyptic number.

It is an amenable number.

33241213 is a deficient number, since it is larger than the sum of its proper divisors (1).

33241213 is an equidigital number, since it uses as much as digits as its factorization.

33241213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 19.

The square root of 33241213 is about 5765.5193174596. The cubic root of 33241213 is about 321.5330506589.

Adding to 33241213 its reverse (31214233), we get a palindrome (64455446).

The spelling of 33241213 in words is "thirty-three million, two hundred forty-one thousand, two hundred thirteen".