2118087 has 12 divisors (see below), whose sum is σ = 3081000. Its totient is φ = 1402128.

The previous prime is 2118079. The next prime is 2118089. The reversal of 2118087 is 7808112.

It is not a de Polignac number, because 2118087 - 2³ = 2118079 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2118087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2118089) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 664 + ... + 2162.

It is an arithmetic number, because the mean of its divisors is an integer number (256750).

2^2118087 is an apocalyptic number.

2118087 is a deficient number, since it is larger than the sum of its proper divisors (962913).

2118087 is a wasteful number, since it uses less digits than its factorization.

2118087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662 (or 1659 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 2118087 is about 1455.3649026962. The cubic root of 2118087 is about 128.4245142003.

The spelling of 2118087 in words is "two million, one hundred eighteen thousand, eighty-seven".