12138107 has 2 divisors, whose sum is σ = 12138108. Its totient is φ = 12138106.

The previous prime is 12138103. The next prime is 12138127. The reversal of 12138107 is 70183121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12138107 - 2² = 12138103 is a prime.

It is a super-3 number, since 3×12138107³ (a number of 22 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (12138103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6069053 + 6069054.

It is an arithmetic number, because the mean of its divisors is an integer number (6069054).

Almost surely, 2^12138107 is an apocalyptic number.

12138107 is a deficient number, since it is larger than the sum of its proper divisors (1).

12138107 is an equidigital number, since it uses as much as digits as its factorization.

12138107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 12138107 is about 3483.9786164671. The cubic root of 12138107 is about 229.8177952049.

The spelling of 12138107 in words is "twelve million, one hundred thirty-eight thousand, one hundred seven".