1085005 has 4 divisors (see below), whose sum is σ = 1302012. Its totient is φ = 868000.

The previous prime is 1085003. The next prime is 1085011. The reversal of 1085005 is 5005801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5005801 = 151 ⋅33151.

It can be written as a sum of positive squares in 2 ways, for example, as 227529 + 857476 = 477^2 + 926^2 .

It is not a de Polignac number, because 1085005 - 2¹ = 1085003 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 (1085003) 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, 108496 + ... + 108505.

It is an arithmetic number, because the mean of its divisors is an integer number (325503).

2^1085005 is an apocalyptic number.

It is an amenable number.

1085005 is a deficient number, since it is larger than the sum of its proper divisors (217007).

1085005 is an equidigital number, since it uses as much as digits as its factorization.

1085005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217006.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 1085005 is about 1041.6357328740. The cubic root of 1085005 is about 102.7568020392.

The spelling of 1085005 in words is "one million, eighty-five thousand, five".