138857230900 has 18 divisors (see below), whose sum is σ = 301320191270. Its totient is φ = 55542892320.

The previous prime is 138857230891. The next prime is 138857230927. The reversal of 138857230900 is 9032758831.

It can be written as a sum of positive squares in 3 ways, for example, as 26999090596 + 111858140304 = 164314^2 + 334452^2 .

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 694286055 + ... + 694286254.

Almost surely, 2^138857230900 is an apocalyptic number.

138857230900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138857230900 is an abundant number, since it is smaller than the sum of its proper divisors (162462960370).

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

138857230900 is a wasteful number, since it uses less digits than its factorization.

138857230900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388572323 (or 1388572316 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 138857230900 in words is "one hundred thirty-eight billion, eight hundred fifty-seven million, two hundred thirty thousand, nine hundred".