138100224 has 40 divisors (see below), whose sum is σ = 367911720. Its totient is φ = 46032896.

The previous prime is 138100213. The next prime is 138100301. The reversal of 138100224 is 422001831.

138100224 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 138100224.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 43419 + ... + 46490.

It is an arithmetic number, because the mean of its divisors is an integer number (9197793).

Almost surely, 2^138100224 is an apocalyptic number.

It is an amenable number.

138100224 is an abundant number, since it is smaller than the sum of its proper divisors (229811496).

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

138100224 is an frugal number, since it uses more digits than its factorization.

138100224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89930 (or 89914 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 138100224 is about 11751.6051669549. The cubic root of 138100224 is about 516.8899970110.

The spelling of 138100224 in words is "one hundred thirty-eight million, one hundred thousand, two hundred twenty-four".