118715520 has 384 divisors, whose sum is σ = 481864320. Its totient is φ = 24330240.

The previous prime is 118715507. The next prime is 118715521. The reversal of 118715520 is 25517811.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (118715521) 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 47 ways as a sum of consecutive naturals, for example, 1626204 + ... + 1626276.

It is an arithmetic number, because the mean of its divisors is an integer number (1254855).

Almost surely, 2^118715520 is an apocalyptic number.

118715520 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 118715520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240932160).

118715520 is an abundant number, since it is smaller than the sum of its proper divisors (363148800).

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

118715520 is a wasteful number, since it uses less digits than its factorization.

118715520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 30.

The square root of 118715520 is about 10895.6651930940. The cubic root of 118715520 is about 491.4762090367.

It can be divided in two parts, 11871 and 5520, that added together give a triangular number (17391 = T₁₈₆).

The spelling of 118715520 in words is "one hundred eighteen million, seven hundred fifteen thousand, five hundred twenty".