33209149 has 2 divisors, whose sum is σ = 33209150. Its totient is φ = 33209148.

The previous prime is 33209129. The next prime is 33209173. The reversal of 33209149 is 94190233.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19740249 + 13468900 = 4443^2 + 3670^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33209149 is a prime.

It is a super-2 number, since 2×33209149² = 2205695154608402, 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 33209149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33209129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16604574 + 16604575.

It is an arithmetic number, because the mean of its divisors is an integer number (16604575).

Almost surely, 2^33209149 is an apocalyptic number.

It is an amenable number.

33209149 is a deficient number, since it is larger than the sum of its proper divisors (1).

33209149 is an equidigital number, since it uses as much as digits as its factorization.

33209149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 33209149 is about 5762.7379777325. The cubic root of 33209149 is about 321.4296353357.

The spelling of 33209149 in words is "thirty-three million, two hundred nine thousand, one hundred forty-nine".