12182609 has 2 divisors, whose sum is σ = 12182610. Its totient is φ = 12182608.

The previous prime is 12182593. The next prime is 12182623. The reversal of 12182609 is 90628121.

12182609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10627600 + 1555009 = 3260^2 + 1247^2 .

It is a cyclic number.

It is not a de Polignac number, because 12182609 - 2⁴ = 12182593 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12182809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6091304 + 6091305.

It is an arithmetic number, because the mean of its divisors is an integer number (6091305).

Almost surely, 2^12182609 is an apocalyptic number.

It is an amenable number.

12182609 is a deficient number, since it is larger than the sum of its proper divisors (1).

12182609 is an equidigital number, since it uses as much as digits as its factorization.

12182609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 12182609 is about 3490.3594370781. The cubic root of 12182609 is about 230.0983133576.

The spelling of 12182609 in words is "twelve million, one hundred eighty-two thousand, six hundred nine".