118139112 has 288 divisors, whose sum is σ = 422510400. Its totient is φ = 29113344.

The previous prime is 118139089. The next prime is 118139117. The reversal of 118139112 is 211931811.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (118139117) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1618308 + ... + 1618380.

It is an arithmetic number, because the mean of its divisors is an integer number (1467050).

Almost surely, 2^118139112 is an apocalyptic number.

118139112 is a gapful number since it is divisible by the number (12) 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 118139112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211255200).

118139112 is an abundant number, since it is smaller than the sum of its proper divisors (304371288).

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

118139112 is a wasteful number, since it uses less digits than its factorization.

118139112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137 (or 117 counting only the distinct ones).

The product of its digits is 432, while the sum is 27.

The square root of 118139112 is about 10869.1817539316. The cubic root of 118139112 is about 490.6794849197.

The spelling of 118139112 in words is "one hundred eighteen million, one hundred thirty-nine thousand, one hundred twelve".