2215117 has 8 divisors (see below), whose sum is σ = 2359800. Its totient is φ = 2072064.

The previous prime is 2215111. The next prime is 2215127. The reversal of 2215117 is 7115122.

2215117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 741321 + 1473796 = 861^2 + 1214^2 .

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 2215117 - 2¹¹ = 2213069 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2215094 and 2215103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3609 + ... + 4177.

It is an arithmetic number, because the mean of its divisors is an integer number (294975).

2^2215117 is an apocalyptic number.

It is an amenable number.

2215117 is a deficient number, since it is larger than the sum of its proper divisors (144683).

2215117 is a wasteful number, since it uses less digits than its factorization.

2215117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815.

The product of its digits is 140, while the sum is 19.

The square root of 2215117 is about 1488.3269130134. The cubic root of 2215117 is about 130.3563595231.

It can be divided in two parts, 2215 and 117, that added together give a palindrome (2332).

The spelling of 2215117 in words is "two million, two hundred fifteen thousand, one hundred seventeen".