1271252277146 has 16 divisors (see below), whose sum is σ = 1913884977600. Its totient is φ = 633293757408.

The previous prime is 1271252277133. The next prime is 1271252277167. The reversal of 1271252277146 is 6417722521721.

It is a self number, because there is not a number n which added to its sum of digits gives 1271252277146.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26501 + ... + 1594743.

It is an arithmetic number, because the mean of its divisors is an integer number (119617811100).

Almost surely, 2^{1271252277146} is an apocalyptic number.

1271252277146 is a deficient number, since it is larger than the sum of its proper divisors (642632700454).

1271252277146 is a wasteful number, since it uses less digits than its factorization.

1271252277146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1569733.

The product of its digits is 658560, while the sum is 47.

Adding to 1271252277146 its reverse (6417722521721), we get a palindrome (7688974798867).

The spelling of 1271252277146 in words is "one trillion, two hundred seventy-one billion, two hundred fifty-two million, two hundred seventy-seven thousand, one hundred forty-six".