2118139 has 16 divisors (see below), whose sum is σ = 2407680. Its totient is φ = 1853280.

The previous prime is 2118121. The next prime is 2118163. The reversal of 2118139 is 9318112.

2118139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2118139 - 2¹⁷ = 1987067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2118119) 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 15 ways as a sum of consecutive naturals, for example, 16104 + ... + 16234.

It is an arithmetic number, because the mean of its divisors is an integer number (150480).

2^2118139 is an apocalyptic number.

2118139 is a deficient number, since it is larger than the sum of its proper divisors (289541).

2118139 is a wasteful number, since it uses less digits than its factorization.

2118139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210.

The product of its digits is 432, while the sum is 25.

The square root of 2118139 is about 1455.3827675220. The cubic root of 2118139 is about 128.4255651518.

The spelling of 2118139 in words is "two million, one hundred eighteen thousand, one hundred thirty-nine".