12838187 has 2 divisors, whose sum is σ = 12838188. Its totient is φ = 12838186.

The previous prime is 12838169. The next prime is 12838193. The reversal of 12838187 is 78183821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12838187 - 2⁸ = 12837931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12838187.

It is not a weakly prime, because it can be changed into another prime (12838127) 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 as a sum of consecutive naturals, namely, 6419093 + 6419094.

It is an arithmetic number, because the mean of its divisors is an integer number (6419094).

Almost surely, 2^12838187 is an apocalyptic number.

12838187 is a deficient number, since it is larger than the sum of its proper divisors (1).

12838187 is an equidigital number, since it uses as much as digits as its factorization.

12838187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21504, while the sum is 38.

The square root of 12838187 is about 3583.0415850224. The cubic root of 12838187 is about 234.1538119923.

The spelling of 12838187 in words is "twelve million, eight hundred thirty-eight thousand, one hundred eighty-seven".