12971339 has 2 divisors, whose sum is σ = 12971340. Its totient is φ = 12971338.

The previous prime is 12971317. The next prime is 12971347. The reversal of 12971339 is 93317921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12971339 - 2⁸ = 12971083 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12971299 and 12971308.

It is not a weakly prime, because it can be changed into another prime (12971359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6485669 + 6485670.

It is an arithmetic number, because the mean of its divisors is an integer number (6485670).

Almost surely, 2^12971339 is an apocalyptic number.

12971339 is a deficient number, since it is larger than the sum of its proper divisors (1).

12971339 is an equidigital number, since it uses as much as digits as its factorization.

12971339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10206, while the sum is 35.

The square root of 12971339 is about 3601.5745167912. The cubic root of 12971339 is about 234.9605426435.

The spelling of 12971339 in words is "twelve million, nine hundred seventy-one thousand, three hundred thirty-nine".