12750191 has 2 divisors, whose sum is σ = 12750192. Its totient is φ = 12750190.

The previous prime is 12750181. The next prime is 12750193. The reversal of 12750191 is 19105721.

It is a strong prime.

It is an emirp because it is prime and its reverse (19105721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12750191 - 2¹⁴ = 12733807 is a prime.

Together with 12750193, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12750191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12750193) 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, 6375095 + 6375096.

It is an arithmetic number, because the mean of its divisors is an integer number (6375096).

Almost surely, 2^12750191 is an apocalyptic number.

12750191 is a deficient number, since it is larger than the sum of its proper divisors (1).

12750191 is an equidigital number, since it uses as much as digits as its factorization.

12750191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 630, while the sum is 26.

The square root of 12750191 is about 3570.7409595209. The cubic root of 12750191 is about 233.6176029672.

The spelling of 12750191 in words is "twelve million, seven hundred fifty thousand, one hundred ninety-one".