12712291 has 2 divisors, whose sum is σ = 12712292. Its totient is φ = 12712290.

The previous prime is 12712289. The next prime is 12712303. The reversal of 12712291 is 19221721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12712291 - 2¹ = 12712289 is a prime.

Together with 12712289, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12712241) 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, 6356145 + 6356146.

It is an arithmetic number, because the mean of its divisors is an integer number (6356146).

Almost surely, 2^12712291 is an apocalyptic number.

12712291 is a deficient number, since it is larger than the sum of its proper divisors (1).

12712291 is an equidigital number, since it uses as much as digits as its factorization.

12712291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504, while the sum is 25.

The square root of 12712291 is about 3565.4299880940. The cubic root of 12712291 is about 233.3858967748.

The spelling of 12712291 in words is "twelve million, seven hundred twelve thousand, two hundred ninety-one".