138200140 has 48 divisors (see below), whose sum is σ = 330940512. Its totient is φ = 48024576.

The previous prime is 138200137. The next prime is 138200141. The reversal of 138200140 is 41002831.

138200140 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (138200141) 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 15 ways as a sum of consecutive naturals, for example, 11214 + ... + 20053.

It is an arithmetic number, because the mean of its divisors is an integer number (6894594).

Almost surely, 2^138200140 is an apocalyptic number.

138200140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138200140 is an abundant number, since it is smaller than the sum of its proper divisors (192740372).

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

138200140 is a wasteful number, since it uses less digits than its factorization.

138200140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31306 (or 31304 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 138200140 is about 11755.8555622294. The cubic root of 138200140 is about 517.0146242061.

Adding to 138200140 its reverse (41002831), we get a palindrome (179202971).

The spelling of 138200140 in words is "one hundred thirty-eight million, two hundred thousand, one hundred forty".