139320 has 80 divisors (see below), whose sum is σ = 479160. Its totient is φ = 36288.

The previous prime is 139313. The next prime is 139333. The reversal of 139320 is 23931.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 139293 and 139302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3219 + ... + 3261.

2¹³⁹³²⁰ is an apocalyptic number.

139320 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 139320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239580).

139320 is an abundant number, since it is smaller than the sum of its proper divisors (339840).

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

139320 is a wasteful number, since it uses less digits than its factorization.

139320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66 (or 53 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 139320 is about 373.2559443599. The cubic root of 139320 is about 51.8407355863.

The spelling of 139320 in words is "one hundred thirty-nine thousand, three hundred twenty".