1271360560 has 20 divisors (see below), whose sum is σ = 2955913488. Its totient is φ = 508544192.

The previous prime is 1271360557. The next prime is 1271360569. The reversal of 1271360560 is 650631721.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (1271360569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7945924 + ... + 7946083.

Almost surely, 2^1271360560 is an apocalyptic number.

1271360560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1271360560 is an abundant number, since it is smaller than the sum of its proper divisors (1684552928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1271360560 is a wasteful number, since it uses less digits than its factorization.

1271360560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15892020 (or 15892014 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 1271360560 is about 35656.1433696916. The cubic root of 1271360560 is about 1083.3187124391.

The spelling of 1271360560 in words is "one billion, two hundred seventy-one million, three hundred sixty thousand, five hundred sixty".