30118 has 12 divisors (see below), whose sum is σ = 50652. Its totient is φ = 13320.

The previous prime is 30113. The next prime is 30119. The reversal of 30118 is 81103.

It is a junction number, because it is equal to n+sod(n) for n = 30098 and 30107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30113) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 796 + ... + 832.

It is an arithmetic number, because the mean of its divisors is an integer number (4221).

2³⁰¹¹⁸ is an apocalyptic number.

30118 is a deficient number, since it is larger than the sum of its proper divisors (20534).

30118 is a wasteful number, since it uses less digits than its factorization.

30118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87 (or 50 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 30118 is about 173.5453831135. The cubic root of 30118 is about 31.1130110329.

The spelling of 30118 in words is "thirty thousand, one hundred eighteen".