1126812647 has 2 divisors, whose sum is σ = 1126812648. Its totient is φ = 1126812646.

The previous prime is 1126812641. The next prime is 1126812677. The reversal of 1126812647 is 7462186211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1126812647 - 2¹⁴ = 1126796263 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1126812647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1126812641) 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, 563406323 + 563406324.

It is an arithmetic number, because the mean of its divisors is an integer number (563406324).

Almost surely, 2^1126812647 is an apocalyptic number.

1126812647 is a deficient number, since it is larger than the sum of its proper divisors (1).

1126812647 is an equidigital number, since it uses as much as digits as its factorization.

1126812647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 38.

The square root of 1126812647 is about 33568.0301328511. The cubic root of 1126812647 is about 1040.6001981145.

Adding to 1126812647 its reverse (7462186211), we get a palindrome (8588998858).

The spelling of 1126812647 in words is "one billion, one hundred twenty-six million, eight hundred twelve thousand, six hundred forty-seven".