33340189 has 2 divisors, whose sum is σ = 33340190. Its totient is φ = 33340188.

The previous prime is 33340163. The next prime is 33340211. The reversal of 33340189 is 98104333.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32684089 + 656100 = 5717^2 + 810^2 .

It is a cyclic number.

It is not a de Polignac number, because 33340189 - 2¹³ = 33331997 is a prime.

It is a super-2 number, since 2×33340189² = 2223136405111442, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33340189.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33340289) 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, 16670094 + 16670095.

It is an arithmetic number, because the mean of its divisors is an integer number (16670095).

Almost surely, 2^33340189 is an apocalyptic number.

It is an amenable number.

33340189 is a deficient number, since it is larger than the sum of its proper divisors (1).

33340189 is an equidigital number, since it uses as much as digits as its factorization.

33340189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 33340189 is about 5774.0963795212. The cubic root of 33340189 is about 321.8518569341.

The spelling of 33340189 in words is "thirty-three million, three hundred forty thousand, one hundred eighty-nine".