1116403 has 4 divisors (see below), whose sum is σ = 1152448. Its totient is φ = 1080360.

The previous prime is 1116371. The next prime is 1116419. The reversal of 1116403 is 3046111.

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

It is a cyclic number.

It is not a de Polignac number, because 1116403 - 2⁵ = 1116371 is a prime.

It is a Duffinian number.

1116403 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1116473) 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, 17976 + ... + 18037.

It is an arithmetic number, because the mean of its divisors is an integer number (288112).

2^1116403 is an apocalyptic number.

1116403 is a deficient number, since it is larger than the sum of its proper divisors (36045).

1116403 is an equidigital number, since it uses as much as digits as its factorization.

1116403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36044.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1116403 is about 1056.5997349990. The cubic root of 1116403 is about 103.7385877998.

The spelling of 1116403 in words is "one million, one hundred sixteen thousand, four hundred three".