1161185 has 16 divisors (see below), whose sum is σ = 1555200. Its totient is φ = 827136.

The previous prime is 1161169. The next prime is 1161203. The reversal of 1161185 is 5811611.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1161185 - 2⁴ = 1161169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1161185.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1256 + ... + 1974.

It is an arithmetic number, because the mean of its divisors is an integer number (97200).

2^1161185 is an apocalyptic number.

It is an amenable number.

1161185 is a deficient number, since it is larger than the sum of its proper divisors (394015).

1161185 is a wasteful number, since it uses less digits than its factorization.

1161185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760.

The product of its digits is 240, while the sum is 23.

The square root of 1161185 is about 1077.5829434433. The cubic root of 1161185 is about 105.1075240185.

Adding to 1161185 its reverse (5811611), we get a palindrome (6972796).

The spelling of 1161185 in words is "one million, one hundred sixty-one thousand, one hundred eighty-five".