12109707 has 24 divisors (see below), whose sum is σ = 19219200. Its totient is φ = 7313328.

The previous prime is 12109697. The next prime is 12109817. The reversal of 12109707 is 70790121.

It is not a de Polignac number, because 12109707 - 2⁷ = 12109579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12109007) 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 in 23 ways as a sum of consecutive naturals, for example, 2394 + ... + 5472.

It is an arithmetic number, because the mean of its divisors is an integer number (800800).

Almost surely, 2^12109707 is an apocalyptic number.

12109707 is a deficient number, since it is larger than the sum of its proper divisors (7109493).

12109707 is a wasteful number, since it uses less digits than its factorization.

12109707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3127 (or 3124 counting only the distinct ones).

The product of its (nonzero) digits is 882, while the sum is 27.

The square root of 12109707 is about 3479.9004296100. The cubic root of 12109707 is about 229.6384173616.

Adding to 12109707 its reverse (70790121), we get a palindrome (82899828).

The spelling of 12109707 in words is "twelve million, one hundred nine thousand, seven hundred seven".