1116999 has 12 divisors (see below), whose sum is σ = 1737736. Its totient is φ = 687312.

The previous prime is 1116989. The next prime is 1117009. The reversal of 1116999 is 9996111.

It is an interprime number because it is at equal distance from previous prime (1116989) and next prime (1117009).

It is not a de Polignac number, because 1116999 - 2⁸ = 1116743 is a prime.

It is an Ulam number.

1116999 is a lucky number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1116989) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4657 + ... + 4890.

2^1116999 is an apocalyptic number.

1116999 is a deficient number, since it is larger than the sum of its proper divisors (620737).

1116999 is a wasteful number, since it uses less digits than its factorization.

1116999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9566 (or 9563 counting only the distinct ones).

The product of its digits is 4374, while the sum is 36.

The square root of 1116999 is about 1056.8817341595. The cubic root of 1116999 is about 103.7570450531.

The spelling of 1116999 in words is "one million, one hundred sixteen thousand, nine hundred ninety-nine".