1085321 has 4 divisors (see below), whose sum is σ = 1114692. Its totient is φ = 1055952.

The previous prime is 1085317. The next prime is 1085327. The reversal of 1085321 is 1235801.

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 929296 + 156025 = 964^2 + 395^2 .

It is a cyclic number.

It is not a de Polignac number, because 1085321 - 2² = 1085317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 1085293 and 1085302.

It is not an unprimeable number, because it can be changed into a prime (1085327) 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, 14630 + ... + 14703.

It is an arithmetic number, because the mean of its divisors is an integer number (278673).

2^1085321 is an apocalyptic number.

It is an amenable number.

1085321 is a deficient number, since it is larger than the sum of its proper divisors (29371).

1085321 is an equidigital number, since it uses as much as digits as its factorization.

1085321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29370.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1085321 is about 1041.7874063359. The cubic root of 1085321 is about 102.7667768005.

The spelling of 1085321 in words is "one million, eighty-five thousand, three hundred twenty-one".