118555140 has 96 divisors (see below), whose sum is σ = 364041216. Its totient is φ = 28589440.

The previous prime is 118555123. The next prime is 118555153. The reversal of 118555140 is 41555811.

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

It is a junction number, because it is equal to n+sod(n) for n = 118555098 and 118555107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 173239 + ... + 173921.

It is an arithmetic number, because the mean of its divisors is an integer number (3792096).

Almost surely, 2^118555140 is an apocalyptic number.

118555140 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 118555140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182020608).

118555140 is an abundant number, since it is smaller than the sum of its proper divisors (245486076).

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

118555140 is a wasteful number, since it uses less digits than its factorization.

118555140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969 (or 967 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 30.

The square root of 118555140 is about 10888.3028980645. The cubic root of 118555140 is about 491.2547876179.

The spelling of 118555140 in words is "one hundred eighteen million, five hundred fifty-five thousand, one hundred forty".