138960084 has 24 divisors (see below), whose sum is σ = 326719008. Its totient is φ = 45965920.

The previous prime is 138960071. The next prime is 138960103. The reversal of 138960084 is 480069831.

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 7 ways as a sum of consecutive naturals, for example, 42627 + ... + 45770.

It is an arithmetic number, because the mean of its divisors is an integer number (13613292).

Almost surely, 2^138960084 is an apocalyptic number.

It is an amenable number.

138960084 is an abundant number, since it is smaller than the sum of its proper divisors (187758924).

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

138960084 is a wasteful number, since it uses less digits than its factorization.

138960084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88535 (or 88533 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 138960084 is about 11788.1331855388. The cubic root of 138960084 is about 517.9605571156.

The spelling of 138960084 in words is "one hundred thirty-eight million, nine hundred sixty thousand, eighty-four".