12745567 has 2 divisors, whose sum is σ = 12745568. Its totient is φ = 12745566.

The previous prime is 12745549. The next prime is 12745571. The reversal of 12745567 is 76554721.

It is a strong prime.

It is an emirp because it is prime and its reverse (76554721) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12745567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12745367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6372783 + 6372784.

It is an arithmetic number, because the mean of its divisors is an integer number (6372784).

Almost surely, 2^12745567 is an apocalyptic number.

12745567 is a deficient number, since it is larger than the sum of its proper divisors (1).

12745567 is an equidigital number, since it uses as much as digits as its factorization.

12745567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58800, while the sum is 37.

The square root of 12745567 is about 3570.0934161447. The cubic root of 12745567 is about 233.5893582031.

The spelling of 12745567 in words is "twelve million, seven hundred forty-five thousand, five hundred sixty-seven".