1276113847 has 2 divisors, whose sum is σ = 1276113848. Its totient is φ = 1276113846.

The previous prime is 1276113841. The next prime is 1276113887. The reversal of 1276113847 is 7483116721.

It is a happy number.

It is an a-pointer prime, because the next prime (1276113887) can be obtained adding 1276113847 to its sum of digits (40).

It is a weak prime.

It is an emirp because it is prime and its reverse (7483116721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1276113847 - 2¹¹ = 1276111799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1276113841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 638056923 + 638056924.

It is an arithmetic number, because the mean of its divisors is an integer number (638056924).

Almost surely, 2^1276113847 is an apocalyptic number.

1276113847 is a deficient number, since it is larger than the sum of its proper divisors (1).

1276113847 is an equidigital number, since it uses as much as digits as its factorization.

1276113847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 40.

The square root of 1276113847 is about 35722.7357155076. The cubic root of 1276113847 is about 1084.6671158428.

The spelling of 1276113847 in words is "one billion, two hundred seventy-six million, one hundred thirteen thousand, eight hundred forty-seven".