12818671 has 2 divisors, whose sum is σ = 12818672. Its totient is φ = 12818670.

The previous prime is 12818669. The next prime is 12818677. The reversal of 12818671 is 17681821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12818671 - 2¹ = 12818669 is a prime.

Together with 12818669, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12818677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6409335 + 6409336.

It is an arithmetic number, because the mean of its divisors is an integer number (6409336).

Almost surely, 2^12818671 is an apocalyptic number.

12818671 is a deficient number, since it is larger than the sum of its proper divisors (1).

12818671 is an equidigital number, since it uses as much as digits as its factorization.

12818671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 34.

The square root of 12818671 is about 3580.3171647216. The cubic root of 12818671 is about 234.0351019979.

It can be divided in two parts, 12818 and 671, that multiplied together give a triangular number (8600878 = T₄₁₄₇).

The spelling of 12818671 in words is "twelve million, eight hundred eighteen thousand, six hundred seventy-one".