139811112 has 144 divisors (see below), whose sum is σ = 459894240. Its totient is φ = 38187072.

The previous prime is 139811099. The next prime is 139811129. The reversal of 139811112 is 211118931.

It is a nude number because it is divisible by every one of its digits.

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 35 ways as a sum of consecutive naturals, for example, 80283 + ... + 82005.

It is an arithmetic number, because the mean of its divisors is an integer number (3193710).

Almost surely, 2^139811112 is an apocalyptic number.

139811112 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 139811112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229947120).

139811112 is an abundant number, since it is smaller than the sum of its proper divisors (320083128).

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

139811112 is a wasteful number, since it uses less digits than its factorization.

139811112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1772 (or 1758 counting only the distinct ones).

The product of its digits is 432, while the sum is 27.

The square root of 139811112 is about 11824.1748972180. The cubic root of 139811112 is about 519.0157813148.

The spelling of 139811112 in words is "one hundred thirty-nine million, eight hundred eleven thousand, one hundred twelve".