118871720 has 32 divisors (see below), whose sum is σ = 291777120. Its totient is φ = 43225920.

The previous prime is 118871719. The next prime is 118871729. The reversal of 118871720 is 27178811.

It is not an unprimeable number, because it can be changed into a prime (118871729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134642 + ... + 135521.

It is an arithmetic number, because the mean of its divisors is an integer number (9118035).

Almost surely, 2^118871720 is an apocalyptic number.

118871720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118871720 is an abundant number, since it is smaller than the sum of its proper divisors (172905400).

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

118871720 is a wasteful number, since it uses less digits than its factorization.

118871720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270185 (or 270181 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 35.

The square root of 118871720 is about 10902.8308250656. The cubic root of 118871720 is about 491.6916679170.

The spelling of 118871720 in words is "one hundred eighteen million, eight hundred seventy-one thousand, seven hundred twenty".