1271146808 has 16 divisors (see below), whose sum is σ = 2383861560. Its totient is φ = 635450400.

The previous prime is 1271146801. The next prime is 1271146817. The reversal of 1271146808 is 8086411721.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1271146801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40478 + ... + 64658.

Almost surely, 2^1271146808 is an apocalyptic number.

It is an amenable number.

1271146808 is a deficient number, since it is larger than the sum of its proper divisors (1112714752).

1271146808 is a wasteful number, since it uses less digits than its factorization.

1271146808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30758 (or 30754 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 38.

The square root of 1271146808 is about 35653.1458359567. The cubic root of 1271146808 is about 1083.2579967703.

The spelling of 1271146808 in words is "one billion, two hundred seventy-one million, one hundred forty-six thousand, eight hundred eight".