33130609 has 2 divisors, whose sum is σ = 33130610. Its totient is φ = 33130608.

The previous prime is 33130589. The next prime is 33130613. The reversal of 33130609 is 90603133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23736384 + 9394225 = 4872^2 + 3065^2 .

It is an emirp because it is prime and its reverse (90603133) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33130609 is a prime.

It is not a weakly prime, because it can be changed into another prime (33130619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16565304 + 16565305.

It is an arithmetic number, because the mean of its divisors is an integer number (16565305).

Almost surely, 2^33130609 is an apocalyptic number.

It is an amenable number.

33130609 is a deficient number, since it is larger than the sum of its proper divisors (1).

33130609 is an equidigital number, since it uses as much as digits as its factorization.

33130609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458, while the sum is 25.

The square root of 33130609 is about 5755.9194747668. The cubic root of 33130609 is about 321.1760404465.

The spelling of 33130609 in words is "thirty-three million, one hundred thirty thousand, six hundred nine".