2165115 has 8 divisors (see below), whose sum is σ = 3464208. Its totient is φ = 1154720.

The previous prime is 2165089. The next prime is 2165117. The reversal of 2165115 is 5115612.

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

It is not a de Polignac number, because 2165115 - 2⁵ = 2165083 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2165091 and 2165100.

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 7 ways as a sum of consecutive naturals, for example, 72156 + ... + 72185.

It is an arithmetic number, because the mean of its divisors is an integer number (433026).

2^2165115 is an apocalyptic number.

2165115 is a deficient number, since it is larger than the sum of its proper divisors (1299093).

2165115 is a wasteful number, since it uses less digits than its factorization.

2165115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144349.

The product of its digits is 300, while the sum is 21.

The square root of 2165115 is about 1471.4329750281. The cubic root of 2165115 is about 129.3680373858.

The spelling of 2165115 in words is "two million, one hundred sixty-five thousand, one hundred fifteen".