1106005 has 4 divisors (see below), whose sum is σ = 1327212. Its totient is φ = 884800.

The previous prime is 1105999. The next prime is 1106029. The reversal of 1106005 is 5006011.

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

It can be written as a sum of positive squares in 2 ways, for example, as 574564 + 531441 = 758^2 + 729^2 .

It is not a de Polignac number, because 1106005 - 2³ = 1105997 is a prime.

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 3 ways as a sum of consecutive naturals, for example, 110596 + ... + 110605.

It is an arithmetic number, because the mean of its divisors is an integer number (331803).

2^1106005 is an apocalyptic number.

It is an amenable number.

1106005 is a deficient number, since it is larger than the sum of its proper divisors (221207).

1106005 is an equidigital number, since it uses as much as digits as its factorization.

1106005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221206.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 1106005 is about 1051.6677231902. The cubic root of 1106005 is about 103.4155144597.

The spelling of 1106005 in words is "one million, one hundred six thousand, five".