2118575 has 12 divisors (see below), whose sum is σ = 2661288. Its totient is φ = 1672800.

The previous prime is 2118547. The next prime is 2118581. The reversal of 2118575 is 5758112.

2118575 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-2118575 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1565 + ... + 2585.

It is an arithmetic number, because the mean of its divisors is an integer number (221774).

2^2118575 is an apocalyptic number.

2118575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2118575 is a deficient number, since it is larger than the sum of its proper divisors (542713).

2118575 is a wasteful number, since it uses less digits than its factorization.

2118575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114 (or 1109 counting only the distinct ones).

The product of its digits is 2800, while the sum is 29.

The square root of 2118575 is about 1455.5325485883. The cubic root of 2118575 is about 128.4343762992.

The spelling of 2118575 in words is "two million, one hundred eighteen thousand, five hundred seventy-five".