33305149 has 2 divisors, whose sum is σ = 33305150. Its totient is φ = 33305148.

The previous prime is 33305131. The next prime is 33305171. The reversal of 33305149 is 94150333.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27899524 + 5405625 = 5282^2 + 2325^2 .

It is an emirp because it is prime and its reverse (94150333) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33305149 - 2⁵ = 33305117 is a prime.

It is a super-2 number, since 2×33305149² = 2218465899824402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33305179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16652574 + 16652575.

It is an arithmetic number, because the mean of its divisors is an integer number (16652575).

Almost surely, 2^33305149 is an apocalyptic number.

It is an amenable number.

33305149 is a deficient number, since it is larger than the sum of its proper divisors (1).

33305149 is an equidigital number, since it uses as much as digits as its factorization.

33305149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 33305149 is about 5771.0613408627. The cubic root of 33305149 is about 321.7390637096.

The spelling of 33305149 in words is "thirty-three million, three hundred five thousand, one hundred forty-nine".