12499271 has 2 divisors, whose sum is σ = 12499272. Its totient is φ = 12499270.

The previous prime is 12499247. The next prime is 12499273. The reversal of 12499271 is 17299421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12499271 - 2¹⁴ = 12482887 is a prime.

It is a Sophie Germain prime.

Together with 12499273, 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 (12499273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6249635 + 6249636.

It is an arithmetic number, because the mean of its divisors is an integer number (6249636).

Almost surely, 2^12499271 is an apocalyptic number.

12499271 is a deficient number, since it is larger than the sum of its proper divisors (1).

12499271 is an equidigital number, since it uses as much as digits as its factorization.

12499271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 35.

The square root of 12499271 is about 3535.4308082609. The cubic root of 12499271 is about 232.0749299686.

The spelling of 12499271 in words is "twelve million, four hundred ninety-nine thousand, two hundred seventy-one".