1271160 has 128 divisors (see below), whose sum is σ = 4665600. Its totient is φ = 305280.

The previous prime is 1271147. The next prime is 1271161. The reversal of 1271160 is 611721.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1271161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11827 + ... + 11933.

It is an arithmetic number, because the mean of its divisors is an integer number (36450).

2^1271160 is an apocalyptic number.

1271160 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 1271160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2332800).

1271160 is an abundant number, since it is smaller than the sum of its proper divisors (3394440).

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

1271160 is a wasteful number, since it uses less digits than its factorization.

1271160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 18.

The square root of 1271160 is about 1127.4573162652. The cubic root of 1271160 is about 108.3261744119.

Adding to 1271160 its reverse (611721), we get a palindrome (1882881).

It can be divided in two parts, 1271 and 160, that added together give a triangular number (1431 = T₅₃).

The spelling of 1271160 in words is "one million, two hundred seventy-one thousand, one hundred sixty".