12750071 has 2 divisors, whose sum is σ = 12750072. Its totient is φ = 12750070.

The previous prime is 12750011. The next prime is 12750091. The reversal of 12750071 is 17005721.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (17005721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12750071 - 2¹⁸ = 12487927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12750011) 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, 6375035 + 6375036.

It is an arithmetic number, because the mean of its divisors is an integer number (6375036).

Almost surely, 2^12750071 is an apocalyptic number.

12750071 is a deficient number, since it is larger than the sum of its proper divisors (1).

12750071 is an equidigital number, since it uses as much as digits as its factorization.

12750071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 490, while the sum is 23.

The square root of 12750071 is about 3570.7241562462. The cubic root of 12750071 is about 233.6168700579.

Adding to 12750071 its reverse (17005721), we get a palindrome (29755792).

The spelling of 12750071 in words is "twelve million, seven hundred fifty thousand, seventy-one".