1271151360 has 144 divisors (see below), whose sum is σ = 4510944480. Its totient is φ = 338964480.

The previous prime is 1271151289. The next prime is 1271151361. The reversal of 1271151360 is 631511721.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1271151361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16170 + ... + 52950.

Almost surely, 2^1271151360 is an apocalyptic number.

1271151360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1271151360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2255472240).

1271151360 is an abundant number, since it is smaller than the sum of its proper divisors (3239793120).

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

1271151360 is an equidigital number, since it uses as much as digits as its factorization.

1271151360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36811 (or 36791 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 1271151360 is about 35653.2096731837. The cubic root of 1271151360 is about 1083.2592898243.

The spelling of 1271151360 in words is "one billion, two hundred seventy-one million, one hundred fifty-one thousand, three hundred sixty".