12613871 has 2 divisors, whose sum is σ = 12613872. Its totient is φ = 12613870.

The previous prime is 12613837. The next prime is 12613873. The reversal of 12613871 is 17831621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12613871 - 2¹⁸ = 12351727 is a prime.

It is a Sophie Germain prime.

Together with 12613873, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12613873) 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, 6306935 + 6306936.

It is an arithmetic number, because the mean of its divisors is an integer number (6306936).

Almost surely, 2^12613871 is an apocalyptic number.

12613871 is a deficient number, since it is larger than the sum of its proper divisors (1).

12613871 is an equidigital number, since it uses as much as digits as its factorization.

12613871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 29.

The square root of 12613871 is about 3551.6011881967. The cubic root of 12613871 is about 232.7820356607.

The spelling of 12613871 in words is "twelve million, six hundred thirteen thousand, eight hundred seventy-one".