139738144 has 96 divisors (see below), whose sum is σ = 346139136. Its totient is φ = 54051840.

The previous prime is 139738121. The next prime is 139738163. The reversal of 139738144 is 441837931.

139738144 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 139738097 and 139738106.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136354 + ... + 137374.

It is an arithmetic number, because the mean of its divisors is an integer number (3605616).

Almost surely, 2^139738144 is an apocalyptic number.

139738144 is a gapful number since it is divisible by the number (14) 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 139738144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173069568).

139738144 is an abundant number, since it is smaller than the sum of its proper divisors (206400992).

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

139738144 is a wasteful number, since it uses less digits than its factorization.

139738144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098 (or 1090 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 139738144 is about 11821.0889515306. The cubic root of 139738144 is about 518.9254734384.

The spelling of 139738144 in words is "one hundred thirty-nine million, seven hundred thirty-eight thousand, one hundred forty-four".