7118 has 4 divisors (see below), whose sum is σ = 10680. Its totient is φ = 3558.

The previous prime is 7109. The next prime is 7121. The reversal of 7118 is 8117.

It is a semiprime because it is the product of two primes.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 7096 and 7105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1778 + ... + 1781.

It is an arithmetic number, because the mean of its divisors is an integer number (2670).

2⁷¹¹⁸ is an apocalyptic number.

7118 is a deficient number, since it is larger than the sum of its proper divisors (3562).

7118 is a wasteful number, since it uses less digits than its factorization.

7118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3561.

The product of its digits is 56, while the sum is 17.

The square root of 7118 is about 84.3682404700. The cubic root of 7118 is about 19.2362019523.

Subtracting 7118 from its reverse (8117), we obtain a palindrome (999).

It can be divided in two parts, 7 and 118, that added together give a cube (125 = 5³).

The spelling of 7118 in words is "seven thousand, one hundred eighteen".