1116681 has 8 divisors (see below), whose sum is σ = 1509600. Its totient is φ = 734112.

The previous prime is 1116677. The next prime is 1116701. The reversal of 1116681 is 1866111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1116681 - 2² = 1116677 is a prime.

It is a super-2 number, since 2×1116681² = 2493952911522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1116601) 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, 2331 + ... + 2768.

It is an arithmetic number, because the mean of its divisors is an integer number (188700).

2^1116681 is an apocalyptic number.

It is an amenable number.

1116681 is a deficient number, since it is larger than the sum of its proper divisors (392919).

1116681 is an equidigital number, since it uses as much as digits as its factorization.

1116681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5175.

The product of its digits is 288, while the sum is 24.

The square root of 1116681 is about 1056.7312808846. The cubic root of 1116681 is about 103.7471978727.

The spelling of 1116681 in words is "one million, one hundred sixteen thousand, six hundred eighty-one".