80118 has 12 divisors (see below), whose sum is σ = 173628. Its totient is φ = 26700.

The previous prime is 80111. The next prime is 80141. The reversal of 80118 is 81108.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 4451 = 80118 / (8 + 0 + 1 + 1 + 8).

It is a self number, because there is not a number n which added to its sum of digits gives 80118.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80111) by changing a digit.

80118 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2208 + ... + 2243.

It is an arithmetic number, because the mean of its divisors is an integer number (14469).

2⁸⁰¹¹⁸ is an apocalyptic number.

80118 is an abundant number, since it is smaller than the sum of its proper divisors (93510).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80118 is a wasteful number, since it uses less digits than its factorization.

80118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4459 (or 4456 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

The square root of 80118 is about 283.0512321118. The cubic root of 80118 is about 43.1098686675.

Subtracting 80118 from its reverse (81108), we obtain a triangular number (990 = T₄₄).

The spelling of 80118 in words is "eighty thousand, one hundred eighteen".