139008 has 36 divisors (see below), whose sum is σ = 372008. Its totient is φ = 46080.

The previous prime is 138977. The next prime is 139021. The reversal of 139008 is 800931.

It is a congruent number.

It is an unprimeable number.

139008 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 678 + ... + 858.

2¹³⁹⁰⁰⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186004).

139008 is an abundant number, since it is smaller than the sum of its proper divisors (233000).

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

139008 is an equidigital number, since it uses as much as digits as its factorization.

139008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 139008 is about 372.8377663274. The cubic root of 139008 is about 51.8020084392.

Adding to 139008 its reverse (800931), we get a palindrome (939939).

The spelling of 139008 in words is "one hundred thirty-nine thousand, eight".