1271482272 has 60 divisors (see below), whose sum is σ = 3739401666. Its totient is φ = 423826560.

The previous prime is 1271482259. The next prime is 1271482291. The reversal of 1271482272 is 2722841721.

It can be written as a sum of positive squares in only one way, i.e., 894967056 + 376515216 = 29916^2 + 19404^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 242679 + ... + 247862.

Almost surely, 2^1271482272 is an apocalyptic number.

1271482272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1271482272 is an abundant number, since it is smaller than the sum of its proper divisors (2467919394).

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

1271482272 is an equidigital number, since it uses as much as digits as its factorization.

1271482272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490563 (or 490546 counting only the distinct ones).

The product of its digits is 25088, while the sum is 36.

The square root of 1271482272 is about 35657.8500754042. The cubic root of 1271482272 is about 1083.3532813579.

The spelling of 1271482272 in words is "one billion, two hundred seventy-one million, four hundred eighty-two thousand, two hundred seventy-two".