1180085 has 4 divisors (see below), whose sum is σ = 1416108. Its totient is φ = 944064.

The previous prime is 1180073. The next prime is 1180087. The reversal of 1180085 is 5800811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5800811 = 131 ⋅44281.

It can be written as a sum of positive squares in 2 ways, for example, as 178084 + 1002001 = 422^2 + 1001^2 .

It is a cyclic number.

It is not a de Polignac number, because 1180085 - 2¹² = 1175989 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 1180085.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1180087) 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, 118004 + ... + 118013.

It is an arithmetic number, because the mean of its divisors is an integer number (354027).

2^1180085 is an apocalyptic number.

It is an amenable number.

1180085 is a deficient number, since it is larger than the sum of its proper divisors (236023).

1180085 is an equidigital number, since it uses as much as digits as its factorization.

1180085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236022.

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

The square root of 1180085 is about 1086.3171728367. The cubic root of 1180085 is about 105.6747177913.

Adding to 1180085 its reverse (5800811), we get a palindrome (6980896).

The spelling of 1180085 in words is "one million, one hundred eighty thousand, eighty-five".