1116831 has 4 divisors (see below), whose sum is σ = 1489112. Its totient is φ = 744552.

The previous prime is 1116821. The next prime is 1116851. The reversal of 1116831 is 1386111.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1116831 - 2⁹ = 1116319 is a prime.

It is a super-2 number, since 2×1116831² = 2494622965122, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1116798 and 1116807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1116821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186136 + ... + 186141.

It is an arithmetic number, because the mean of its divisors is an integer number (372278).

2^1116831 is an apocalyptic number.

1116831 is a deficient number, since it is larger than the sum of its proper divisors (372281).

1116831 is an equidigital number, since it uses as much as digits as its factorization.

1116831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372280.

The product of its digits is 144, while the sum is 21.

The square root of 1116831 is about 1056.8022520794. The cubic root of 1116831 is about 103.7518430021.

The spelling of 1116831 in words is "one million, one hundred sixteen thousand, eight hundred thirty-one".