1116605 has 16 divisors (see below), whose sum is σ = 1559424. Its totient is φ = 751680.

The previous prime is 1116601. The next prime is 1116631. The reversal of 1116605 is 5066111.

It is a happy number.

It is not a de Polignac number, because 1116605 - 2² = 1116601 is a prime.

It is a Duffinian number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1874 + ... + 2396.

It is an arithmetic number, because the mean of its divisors is an integer number (97464).

2^1116605 is an apocalyptic number.

It is an amenable number.

1116605 is a deficient number, since it is larger than the sum of its proper divisors (442819).

1116605 is an equidigital number, since it uses as much as digits as its factorization.

1116605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 1116605 is about 1056.6953203265. The cubic root of 1116605 is about 103.7448441818.

The spelling of 1116605 in words is "one million, one hundred sixteen thousand, six hundred five".