1261116 has 24 divisors (see below), whose sum is σ = 3269840. Its totient is φ = 420336.

The previous prime is 1261109. The next prime is 1261121. The reversal of 1261116 is 6111621.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5731 + ... + 5946.

2^1261116 is an apocalyptic number.

It is an amenable number.

1261116 is an abundant number, since it is smaller than the sum of its proper divisors (2008724).

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

1261116 is a wasteful number, since it uses less digits than its factorization.

1261116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11690 (or 11682 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

The square root of 1261116 is about 1122.9942119174. The cubic root of 1261116 is about 108.0401085596.

Adding to 1261116 its reverse (6111621), we get a palindrome (7372737).

The spelling of 1261116 in words is "one million, two hundred sixty-one thousand, one hundred sixteen".