1271310047 has 12 divisors (see below), whose sum is σ = 1518842520. Its totient is φ = 1060241616.

The previous prime is 1271310013. The next prime is 1271310077. The reversal of 1271310047 is 7400131721.

It is a happy number.

It is not a de Polignac number, because 1271310047 - 2⁶ = 1271309983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1271309998 and 1271310025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1271310077) 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 in 11 ways as a sum of consecutive naturals, for example, 348797 + ... + 352422.

It is an arithmetic number, because the mean of its divisors is an integer number (126570210).

Almost surely, 2^1271310047 is an apocalyptic number.

1271310047 is a deficient number, since it is larger than the sum of its proper divisors (247532473).

1271310047 is an equidigital number, since it uses as much as digits as its factorization.

1271310047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701270 (or 701263 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 1271310047 is about 35655.4350274962. The cubic root of 1271310047 is about 1083.3043649742.

Adding to 1271310047 its reverse (7400131721), we get a palindrome (8671441768).

The spelling of 1271310047 in words is "one billion, two hundred seventy-one million, three hundred ten thousand, forty-seven".