1081085 has 4 divisors (see below), whose sum is σ = 1297308. Its totient is φ = 864864.

The previous prime is 1081079. The next prime is 1081097. The reversal of 1081085 is 5801801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5801801 = 421 ⋅13781.

It can be written as a sum of positive squares in 2 ways, for example, as 674041 + 407044 = 821^2 + 638^2 .

It is a cyclic number.

It is not a de Polignac number, because 1081085 - 2¹⁶ = 1015549 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1081085.

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, 108104 + ... + 108113.

It is an arithmetic number, because the mean of its divisors is an integer number (324327).

2^1081085 is an apocalyptic number.

It is an amenable number.

1081085 is a deficient number, since it is larger than the sum of its proper divisors (216223).

1081085 is an equidigital number, since it uses as much as digits as its factorization.

1081085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216222.

The product of its (nonzero) digits is 320, while the sum is 23.

The square root of 1081085 is about 1039.7523743661. The cubic root of 1081085 is about 102.6329031514.

Adding to 1081085 its reverse (5801801), we get a palindrome (6882886).

The spelling of 1081085 in words is "one million, eighty-one thousand, eighty-five".