12912671 has 2 divisors, whose sum is σ = 12912672. Its totient is φ = 12912670.

The previous prime is 12912659. The next prime is 12912677. The reversal of 12912671 is 17621921.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12912671 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12912677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6456335 + 6456336.

It is an arithmetic number, because the mean of its divisors is an integer number (6456336).

Almost surely, 2^12912671 is an apocalyptic number.

12912671 is a deficient number, since it is larger than the sum of its proper divisors (1).

12912671 is an equidigital number, since it uses as much as digits as its factorization.

12912671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512, while the sum is 29.

The square root of 12912671 is about 3593.4205153308. The cubic root of 12912671 is about 234.6057733147.

The spelling of 12912671 in words is "twelve million, nine hundred twelve thousand, six hundred seventy-one".