2165118 has 8 divisors (see below), whose sum is σ = 4330248. Its totient is φ = 721704.

The previous prime is 2165117. The next prime is 2165131. The reversal of 2165118 is 8115612.

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

2165118 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2165117) 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, 180421 + ... + 180432.

It is an arithmetic number, because the mean of its divisors is an integer number (541281).

2^2165118 is an apocalyptic number.

2165118 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2165118 is a wasteful number, since it uses less digits than its factorization.

2165118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360858.

The product of its digits is 480, while the sum is 24.

The square root of 2165118 is about 1471.4339944422. The cubic root of 2165118 is about 129.3680971369.

The spelling of 2165118 in words is "two million, one hundred sixty-five thousand, one hundred eighteen".