1271116 has 24 divisors (see below), whose sum is σ = 2774016. Its totient is φ = 495120.

The previous prime is 1271111. The next prime is 1271117. The reversal of 1271116 is 6111721.

It is a junction number, because it is equal to n+sod(n) for n = 1271093 and 1271102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1271111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1756 + ... + 2371.

It is an arithmetic number, because the mean of its divisors is an integer number (115584).

2^1271116 is an apocalyptic number.

It is an amenable number.

1271116 is an abundant number, since it is smaller than the sum of its proper divisors (1502900).

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

1271116 is a wasteful number, since it uses less digits than its factorization.

1271116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4149 (or 4147 counting only the distinct ones).

The product of its digits is 84, while the sum is 19.

The square root of 1271116 is about 1127.4378031626. The cubic root of 1271116 is about 108.3249245281.

Adding to 1271116 its reverse (6111721), we get a palindrome (7382837).

The spelling of 1271116 in words is "one million, two hundred seventy-one thousand, one hundred sixteen".