139443120 has 160 divisors (see below), whose sum is σ = 486843840. Its totient is φ = 37138176.

The previous prime is 139443103. The next prime is 139443131. The reversal of 139443120 is 21344931.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 174562 + ... + 175358.

It is an arithmetic number, because the mean of its divisors is an integer number (3042774).

Almost surely, 2^139443120 is an apocalyptic number.

139443120 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 139443120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243421920).

139443120 is an abundant number, since it is smaller than the sum of its proper divisors (347400720).

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

139443120 is an frugal number, since it uses more digits than its factorization.

139443120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831 (or 807 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 139443120 is about 11808.6036431070. The cubic root of 139443120 is about 518.5600200443.

The spelling of 139443120 in words is "one hundred thirty-nine million, four hundred forty-three thousand, one hundred twenty".