139944192 has 72 divisors (see below), whose sum is σ = 380478336. Its totient is φ = 45643776.

The previous prime is 139944191. The next prime is 139944209. The reversal of 139944192 is 291449931.

It is not an unprimeable number, because it can be changed into a prime (139944191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34158 + ... + 38034.

Almost surely, 2^139944192 is an apocalyptic number.

139944192 is a gapful number since it is divisible by the number (12) 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 139944192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190239168).

139944192 is an abundant number, since it is smaller than the sum of its proper divisors (240534144).

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

139944192 is an equidigital number, since it uses as much as digits as its factorization.

139944192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3943 (or 3929 counting only the distinct ones).

The product of its digits is 69984, while the sum is 42.

The square root of 139944192 is about 11829.8010126967. The cubic root of 139944192 is about 519.1804051316.

The spelling of 139944192 in words is "one hundred thirty-nine million, nine hundred forty-four thousand, one hundred ninety-two".