12675391 has 2 divisors, whose sum is σ = 12675392. Its totient is φ = 12675390.

The previous prime is 12675367. The next prime is 12675401. The reversal of 12675391 is 19357621.

12675391 is nontrivially palindromic in base 15.

It is a strong prime.

It is an emirp because it is prime and its reverse (19357621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12675391 - 2⁵ = 12675359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12675361) 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, 6337695 + 6337696.

It is an arithmetic number, because the mean of its divisors is an integer number (6337696).

Almost surely, 2^12675391 is an apocalyptic number.

12675391 is a deficient number, since it is larger than the sum of its proper divisors (1).

12675391 is an equidigital number, since it uses as much as digits as its factorization.

12675391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11340, while the sum is 34.

The square root of 12675391 is about 3560.2515360575. The cubic root of 12675391 is about 233.1598613134.

The spelling of 12675391 in words is "twelve million, six hundred seventy-five thousand, three hundred ninety-one".