139380 has 48 divisors (see below), whose sum is σ = 411264. Its totient is φ = 35200.

The previous prime is 139369. The next prime is 139387. The reversal of 139380 is 83931.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 139380.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1330 + ... + 1430.

It is an arithmetic number, because the mean of its divisors is an integer number (8568).

2¹³⁹³⁸⁰ is an apocalyptic number.

139380 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 139380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205632).

139380 is an abundant number, since it is smaller than the sum of its proper divisors (271884).

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

139380 is a wasteful number, since it uses less digits than its factorization.

139380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 139380 is about 373.3363095119. The cubic root of 139380 is about 51.8481764843.

The spelling of 139380 in words is "one hundred thirty-nine thousand, three hundred eighty".