11165897 has 8 divisors (see below), whose sum is σ = 11516736. Its totient is φ = 10817712.

The previous prime is 11165857. The next prime is 11165929. The reversal of 11165897 is 79856111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11165897 - 2¹⁰ = 11164873 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 11165897.

It is not an unprimeable number, because it can be changed into a prime (11165807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10868 + ... + 11850.

It is an arithmetic number, because the mean of its divisors is an integer number (1439592).

Almost surely, 2^11165897 is an apocalyptic number.

It is an amenable number.

11165897 is a deficient number, since it is larger than the sum of its proper divisors (350839).

11165897 is an equidigital number, since it uses as much as digits as its factorization.

11165897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327.

The product of its digits is 15120, while the sum is 38.

The square root of 11165897 is about 3341.5411115232. The cubic root of 11165897 is about 223.5104703425.

The spelling of 11165897 in words is "eleven million, one hundred sixty-five thousand, eight hundred ninety-seven".