138875184 has 120 divisors (see below), whose sum is σ = 446614272. Its totient is φ = 39461760.

The previous prime is 138875183. The next prime is 138875207. The reversal of 138875184 is 481578831.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (138875183) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 313267 + ... + 313709.

Almost surely, 2^138875184 is an apocalyptic number.

138875184 is a gapful number since it is divisible by the number (14) 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 138875184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223307136).

138875184 is an abundant number, since it is smaller than the sum of its proper divisors (307739088).

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

138875184 is a wasteful number, since it uses less digits than its factorization.

138875184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775 (or 766 counting only the distinct ones).

The product of its digits is 215040, while the sum is 45.

The square root of 138875184 is about 11784.5315562393. The cubic root of 138875184 is about 517.8550500548.

The spelling of 138875184 in words is "one hundred thirty-eight million, eight hundred seventy-five thousand, one hundred eighty-four".