139000 has 32 divisors (see below), whose sum is σ = 327600. Its totient is φ = 55200.

The previous prime is 138977. The next prime is 139021. The reversal of 139000 is 931.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 931 + ... + 1069.

2¹³⁹⁰⁰⁰ is an apocalyptic number.

139000 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 139000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163800).

139000 is an abundant number, since it is smaller than the sum of its proper divisors (188600).

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

139000 is a wasteful number, since it uses less digits than its factorization.

139000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 139000 is about 372.8270376461. The cubic root of 139000 is about 51.8010146738.

Adding to 139000 its reverse (931), we get a palindrome (139931).

The spelling of 139000 in words is "one hundred thirty-nine thousand".