118138600 has 48 divisors (see below), whose sum is σ = 277800300. Its totient is φ = 46717440.

The previous prime is 118138583. The next prime is 118138607. The reversal of 118138600 is 6831811.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 2490084 + 115648516 = 1578^2 + 10754^2 .

It is not an unprimeable number, because it can be changed into a prime (118138607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14482 + ... + 21118.

Almost surely, 2^118138600 is an apocalyptic number.

118138600 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 118138600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138900150).

118138600 is an abundant number, since it is smaller than the sum of its proper divisors (159661700).

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

118138600 is a wasteful number, since it uses less digits than its factorization.

118138600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6742 (or 6733 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 118138600 is about 10869.1582010752. The cubic root of 118138600 is about 490.6787760710.

The spelling of 118138600 in words is "one hundred eighteen million, one hundred thirty-eight thousand, six hundred".