33290189 has 2 divisors, whose sum is σ = 33290190. Its totient is φ = 33290188.

The previous prime is 33290171. The next prime is 33290197. The reversal of 33290189 is 98109233.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25908100 + 7382089 = 5090^2 + 2717^2 .

It is a cyclic number.

It is not a de Polignac number, because 33290189 - 2²⁴ = 16512973 is a prime.

It is a super-2 number, since 2×33290189² = 2216473367311442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33290119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16645094 + 16645095.

It is an arithmetic number, because the mean of its divisors is an integer number (16645095).

Almost surely, 2^33290189 is an apocalyptic number.

It is an amenable number.

33290189 is a deficient number, since it is larger than the sum of its proper divisors (1).

33290189 is an equidigital number, since it uses as much as digits as its factorization.

33290189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 33290189 is about 5769.7650732071. The cubic root of 33290189 is about 321.6908835995.

The spelling of 33290189 in words is "thirty-three million, two hundred ninety thousand, one hundred eighty-nine".