1271132960 has 24 divisors (see below), whose sum is σ = 3003051996. Its totient is φ = 508453120.

The previous prime is 1271132957. The next prime is 1271132981. The reversal of 1271132960 is 692311721.

It can be written as a sum of positive squares in 2 ways, for example, as 1235944336 + 35188624 = 35156^2 + 5932^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3972131 + ... + 3972450.

Almost surely, 2^1271132960 is an apocalyptic number.

1271132960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1271132960 is an abundant number, since it is smaller than the sum of its proper divisors (1731919036).

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

1271132960 is an equidigital number, since it uses as much as digits as its factorization.

1271132960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7944596 (or 7944588 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 1271132960 is about 35652.9516309660. The cubic root of 1271132960 is about 1083.2540630492.

The spelling of 1271132960 in words is "one billion, two hundred seventy-one million, one hundred thirty-two thousand, nine hundred sixty".