138000832 has 28 divisors (see below), whose sum is σ = 289956240. Its totient is φ = 64941056.

The previous prime is 138000829. The next prime is 138000847. The reversal of 138000832 is 238000831.

It is a junction number, because it is equal to n+sod(n) for n = 138000797 and 138000806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62332 + ... + 64507.

It is an arithmetic number, because the mean of its divisors is an integer number (10355580).

Almost surely, 2^138000832 is an apocalyptic number.

It is an amenable number.

138000832 is an abundant number, since it is smaller than the sum of its proper divisors (151955408).

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

138000832 is a wasteful number, since it uses less digits than its factorization.

138000832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126868 (or 126858 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 138000832 is about 11747.3755366890. The cubic root of 138000832 is about 516.7659637570.

Subtracting 138000832 from its reverse (238000831), we obtain a palindrome (99999999).

The spelling of 138000832 in words is "one hundred thirty-eight million, eight hundred thirty-two", and thus it is an aban number.