138922160 has 120 divisors (see below), whose sum is σ = 362008080. Its totient is φ = 49282560.

The previous prime is 138922159. The next prime is 138922171. The reversal of 138922160 is 61229831.

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 23 ways as a sum of consecutive naturals, for example, 999371 + ... + 999509.

It is an arithmetic number, because the mean of its divisors is an integer number (3016734).

Almost surely, 2^138922160 is an apocalyptic number.

138922160 is a gapful number since it is divisible by the number (10) 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 138922160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181004040).

138922160 is an abundant number, since it is smaller than the sum of its proper divisors (223085920).

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

138922160 is a wasteful number, since it uses less digits than its factorization.

138922160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 138922160 is about 11786.5245089466. The cubic root of 138922160 is about 517.9134334552.

The spelling of 138922160 in words is "one hundred thirty-eight million, nine hundred twenty-two thousand, one hundred sixty".