12881171 has 2 divisors, whose sum is σ = 12881172. Its totient is φ = 12881170.

The previous prime is 12881161. The next prime is 12881177. The reversal of 12881171 is 17118821.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12881171 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12881177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6440585 + 6440586.

It is an arithmetic number, because the mean of its divisors is an integer number (6440586).

Almost surely, 2^12881171 is an apocalyptic number.

12881171 is a deficient number, since it is larger than the sum of its proper divisors (1).

12881171 is an equidigital number, since it uses as much as digits as its factorization.

12881171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 896, while the sum is 29.

The square root of 12881171 is about 3589.0348284741. The cubic root of 12881171 is about 234.4148471746.

Adding to 12881171 its reverse (17118821), we get a palindrome (29999992).

The spelling of 12881171 in words is "twelve million, eight hundred eighty-one thousand, one hundred seventy-one".