1271655875 has 16 divisors (see below), whose sum is σ = 1813745856. Its totient is φ = 871992000.

The previous prime is 1271655859. The next prime is 1271655881. The reversal of 1271655875 is 5785561721.

It is not a de Polignac number, because 1271655875 - 2⁴ = 1271655859 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 725786 + ... + 727535.

It is an arithmetic number, because the mean of its divisors is an integer number (113359116).

Almost surely, 2^1271655875 is an apocalyptic number.

1271655875 is a deficient number, since it is larger than the sum of its proper divisors (542089981).

1271655875 is an equidigital number, since it uses as much as digits as its factorization.

1271655875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1453343 (or 1453333 counting only the distinct ones).

The product of its digits is 588000, while the sum is 47.

The square root of 1271655875 is about 35660.2842809757. The cubic root of 1271655875 is about 1083.4025846592.

The spelling of 1271655875 in words is "one billion, two hundred seventy-one million, six hundred fifty-five thousand, eight hundred seventy-five".