12481787 has 2 divisors, whose sum is σ = 12481788. Its totient is φ = 12481786.

The previous prime is 12481771. The next prime is 12481793. The reversal of 12481787 is 78718421.

It is a strong prime.

It is an emirp because it is prime and its reverse (78718421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12481787 - 2⁴ = 12481771 is a prime.

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 12481787.

It is not a weakly prime, because it can be changed into another prime (12483787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6240893 + 6240894.

It is an arithmetic number, because the mean of its divisors is an integer number (6240894).

Almost surely, 2^12481787 is an apocalyptic number.

12481787 is a deficient number, since it is larger than the sum of its proper divisors (1).

12481787 is an equidigital number, since it uses as much as digits as its factorization.

12481787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25088, while the sum is 38.

The square root of 12481787 is about 3532.9572598604. The cubic root of 12481787 is about 231.9666705490.

The spelling of 12481787 in words is "twelve million, four hundred eighty-one thousand, seven hundred eighty-seven".