12109697 has 2 divisors, whose sum is σ = 12109698. Its totient is φ = 12109696.

The previous prime is 12109687. The next prime is 12109817. The reversal of 12109697 is 79690121.

12109697 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11806096 + 303601 = 3436^2 + 551^2 .

It is a cyclic number.

It is not a de Polignac number, because 12109697 - 2⁴ = 12109681 is a prime.

It is a super-2 number, since 2×12109697² = 293289522863618, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12109667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6054848 + 6054849.

It is an arithmetic number, because the mean of its divisors is an integer number (6054849).

Almost surely, 2^12109697 is an apocalyptic number.

It is an amenable number.

12109697 is a deficient number, since it is larger than the sum of its proper divisors (1).

12109697 is an equidigital number, since it uses as much as digits as its factorization.

12109697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 35.

The square root of 12109697 is about 3479.8989927870. The cubic root of 12109697 is about 229.6383541511.

The spelling of 12109697 in words is "twelve million, one hundred nine thousand, six hundred ninety-seven".