12329209 has 2 divisors, whose sum is σ = 12329210. Its totient is φ = 12329208.

The previous prime is 12329201. The next prime is 12329237. The reversal of 12329209 is 90292321.

12329209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (12329237) can be obtained adding 12329209 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11799225 + 529984 = 3435^2 + 728^2 .

It is a cyclic number.

It is not a de Polignac number, because 12329209 - 2³ = 12329201 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12329201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6164604 + 6164605.

It is an arithmetic number, because the mean of its divisors is an integer number (6164605).

Almost surely, 2^12329209 is an apocalyptic number.

It is an amenable number.

12329209 is a deficient number, since it is larger than the sum of its proper divisors (1).

12329209 is an equidigital number, since it uses as much as digits as its factorization.

12329209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 12329209 is about 3511.2973385915. The cubic root of 12329209 is about 231.0176020270.

The spelling of 12329209 in words is "twelve million, three hundred twenty-nine thousand, two hundred nine".