118540520 has 64 divisors (see below), whose sum is σ = 306633600. Its totient is φ = 40400640.

The previous prime is 118540469. The next prime is 118540529. The reversal of 118540520 is 25045811.

It is a self number, because there is not a number n which added to its sum of digits gives 118540520.

It is not an unprimeable number, because it can be changed into a prime (118540529) 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, 49511 + ... + 51849.

It is an arithmetic number, because the mean of its divisors is an integer number (4791150).

Almost surely, 2^118540520 is an apocalyptic number.

118540520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 118540520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153316800).

118540520 is an abundant number, since it is smaller than the sum of its proper divisors (188093080).

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

118540520 is a wasteful number, since it uses less digits than its factorization.

118540520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2538 (or 2534 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 118540520 is about 10887.6315147051. The cubic root of 118540520 is about 491.2345932446.

The spelling of 118540520 in words is "one hundred eighteen million, five hundred forty thousand, five hundred twenty".