118520 has 16 divisors (see below), whose sum is σ = 266760. Its totient is φ = 47392.

The previous prime is 118493. The next prime is 118529. The reversal of 118520 is 25811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118529) by changing a digit.

118520 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 3 ways as a sum of consecutive naturals, for example, 1442 + ... + 1521.

2¹¹⁸⁵²⁰ is an apocalyptic number.

118520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118520 is an abundant number, since it is smaller than the sum of its proper divisors (148240).

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

118520 is a wasteful number, since it uses less digits than its factorization.

118520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2974 (or 2970 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 118520 is about 344.2673379802. The cubic root of 118520 is about 49.1206246494.

The spelling of 118520 in words is "one hundred eighteen thousand, five hundred twenty".