12705163 has 2 divisors, whose sum is σ = 12705164. Its totient is φ = 12705162.

The previous prime is 12705127. The next prime is 12705179. The reversal of 12705163 is 36150721.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12705163 is a prime.

It is a super-2 number, since 2×12705163² = 322842333713138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12705113) 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, 6352581 + 6352582.

It is an arithmetic number, because the mean of its divisors is an integer number (6352582).

Almost surely, 2^12705163 is an apocalyptic number.

12705163 is a deficient number, since it is larger than the sum of its proper divisors (1).

12705163 is an equidigital number, since it uses as much as digits as its factorization.

12705163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 12705163 is about 3564.4302490019. The cubic root of 12705163 is about 233.3422674584.

Adding to 12705163 its reverse (36150721), we get a palindrome (48855884).

The spelling of 12705163 in words is "twelve million, seven hundred five thousand, one hundred sixty-three".