138841080 has 64 divisors (see below), whose sum is σ = 476029440. Its totient is φ = 31734912.

The previous prime is 138841051. The next prime is 138841093. The reversal of 138841080 is 80148831.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 81804 + ... + 83483.

It is an arithmetic number, because the mean of its divisors is an integer number (7437960).

Almost surely, 2^138841080 is an apocalyptic number.

138841080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138841080 is an abundant number, since it is smaller than the sum of its proper divisors (337188360).

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

138841080 is a wasteful number, since it uses less digits than its factorization.

138841080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165308 (or 165304 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 33.

The square root of 138841080 is about 11783.0844858212. The cubic root of 138841080 is about 517.8126561728.

The spelling of 138841080 in words is "one hundred thirty-eight million, eight hundred forty-one thousand, eighty".