1085811 has 8 divisors (see below), whose sum is σ = 1475280. Its totient is φ = 710112.

The previous prime is 1085809. The next prime is 1085813. The reversal of 1085811 is 1185801.

It is an interprime number because it is at equal distance from previous prime (1085809) and next prime (1085813).

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

It is not a de Polignac number, because 1085811 - 2¹ = 1085809 is a prime.

It is an Ulam number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (1085813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3256 + ... + 3573.

It is an arithmetic number, because the mean of its divisors is an integer number (184410).

2^1085811 is an apocalyptic number.

1085811 is a deficient number, since it is larger than the sum of its proper divisors (389469).

1085811 is an equidigital number, since it uses as much as digits as its factorization.

1085811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6885.

The product of its (nonzero) digits is 320, while the sum is 24.

The square root of 1085811 is about 1042.0225525391. The cubic root of 1085811 is about 102.7822401655.

The spelling of 1085811 in words is "one million, eighty-five thousand, eight hundred eleven".