12471287 has 2 divisors, whose sum is σ = 12471288. Its totient is φ = 12471286.

The previous prime is 12471281. The next prime is 12471289. The reversal of 12471287 is 78217421.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12471287 - 2⁶ = 12471223 is a prime.

Together with 12471289, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p₈₁₆₉₆₂ and since 12471287 and 816962 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12471281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6235643 + 6235644.

It is an arithmetic number, because the mean of its divisors is an integer number (6235644).

Almost surely, 2^12471287 is an apocalyptic number.

12471287 is a deficient number, since it is larger than the sum of its proper divisors (1).

12471287 is an equidigital number, since it uses as much as digits as its factorization.

12471287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6272, while the sum is 32.

The square root of 12471287 is about 3531.4709399909. The cubic root of 12471287 is about 231.9016068596.

The spelling of 12471287 in words is "twelve million, four hundred seventy-one thousand, two hundred eighty-seven".