1115605 has 8 divisors (see below), whose sum is σ = 1344672. Its totient is φ = 888528.

The previous prime is 1115599. The next prime is 1115627. The reversal of 1115605 is 5065111.

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

It is a cyclic number.

It is not a de Polignac number, because 1115605 - 2⁵ = 1115573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1414 + ... + 2056.

It is an arithmetic number, because the mean of its divisors is an integer number (168084).

2^1115605 is an apocalyptic number.

It is an amenable number.

1115605 is a deficient number, since it is larger than the sum of its proper divisors (229067).

1115605 is an equidigital number, since it uses as much as digits as its factorization.

1115605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 1115605 is about 1056.2220410501. Note that the first 3 decimals coincide. The cubic root of 1115605 is about 103.7138646113.

The spelling of 1115605 in words is "one million, one hundred fifteen thousand, six hundred five".