12106109 has 2 divisors, whose sum is σ = 12106110. Its totient is φ = 12106108.

The previous prime is 12106093. The next prime is 12106117. The reversal of 12106109 is 90160121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11256025 + 850084 = 3355^2 + 922^2 .

It is a cyclic number.

It is not a de Polignac number, because 12106109 - 2⁴ = 12106093 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12106169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6053054 + 6053055.

It is an arithmetic number, because the mean of its divisors is an integer number (6053055).

Almost surely, 2^12106109 is an apocalyptic number.

It is an amenable number.

12106109 is a deficient number, since it is larger than the sum of its proper divisors (1).

12106109 is an equidigital number, since it uses as much as digits as its factorization.

12106109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 12106109 is about 3479.3834223897. The cubic root of 12106109 is about 229.6156719484.

The spelling of 12106109 in words is "twelve million, one hundred six thousand, one hundred nine".