33001273 has 2 divisors, whose sum is σ = 33001274. Its totient is φ = 33001272.

The previous prime is 33001249. The next prime is 33001277. The reversal of 33001273 is 37210033.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25775929 + 7225344 = 5077^2 + 2688^2 .

It is a cyclic number.

It is not a de Polignac number, because 33001273 - 2⁹ = 33000761 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 33001273.

It is not a weakly prime, because it can be changed into another prime (33001277) 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, 16500636 + 16500637.

It is an arithmetic number, because the mean of its divisors is an integer number (16500637).

Almost surely, 2^33001273 is an apocalyptic number.

It is an amenable number.

33001273 is a deficient number, since it is larger than the sum of its proper divisors (1).

33001273 is an equidigital number, since it uses as much as digits as its factorization.

33001273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 19.

The square root of 33001273 is about 5744.6734458975. The cubic root of 33001273 is about 320.7575573821.

The spelling of 33001273 in words is "thirty-three million, one thousand, two hundred seventy-three".