12878147 has 2 divisors, whose sum is σ = 12878148. Its totient is φ = 12878146.

The previous prime is 12878123. The next prime is 12878153. The reversal of 12878147 is 74187821.

12878147 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12878147 - 2⁶ = 12878083 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12878147.

It is not a weakly prime, because it can be changed into another prime (12878347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6439073 + 6439074.

It is an arithmetic number, because the mean of its divisors is an integer number (6439074).

Almost surely, 2^12878147 is an apocalyptic number.

12878147 is a deficient number, since it is larger than the sum of its proper divisors (1).

12878147 is an equidigital number, since it uses as much as digits as its factorization.

12878147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25088, while the sum is 38.

The square root of 12878147 is about 3588.6135205675. The cubic root of 12878147 is about 234.3965018970.

It can be divided in two parts, 1287814 and 7, that added together give a palindrome (1287821).

The spelling of 12878147 in words is "twelve million, eight hundred seventy-eight thousand, one hundred forty-seven".