1321085 has 12 divisors (see below), whose sum is σ = 1637748. Its totient is φ = 1022976.

The previous prime is 1321079. The next prime is 1321093. The reversal of 1321085 is 5801231.

It can be written as a sum of positive squares in 6 ways, for example, as 80089 + 1240996 = 283^2 + 1114^2 .

It is not a de Polignac number, because 1321085 - 2¹⁰ = 1320061 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 6749 + ... + 6941.

It is an arithmetic number, because the mean of its divisors is an integer number (136479).

2^1321085 is an apocalyptic number.

It is an amenable number.

1321085 is a deficient number, since it is larger than the sum of its proper divisors (316663).

1321085 is an equidigital number, since it uses as much as digits as its factorization.

1321085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272 (or 235 counting only the distinct ones).

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

The square root of 1321085 is about 1149.3846179587. The cubic root of 1321085 is about 109.7261784493.

The spelling of 1321085 in words is "one million, three hundred twenty-one thousand, eighty-five".