139208 has 8 divisors (see below), whose sum is σ = 261030. Its totient is φ = 69600.

The previous prime is 139201. The next prime is 139241. The reversal of 139208 is 802931.

139208 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 114244 + 24964 = 338^2 + 158^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 139208.

It is not an unprimeable number, because it can be changed into a prime (139201) by changing a digit.

139208 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 as a sum of consecutive naturals, namely, 8693 + ... + 8708.

2¹³⁹²⁰⁸ is an apocalyptic number.

It is an amenable number.

139208 is a deficient number, since it is larger than the sum of its proper divisors (121822).

139208 is a wasteful number, since it uses less digits than its factorization.

139208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17407 (or 17403 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 139208 is about 373.1058830949. The cubic root of 139208 is about 51.8268401921.

The spelling of 139208 in words is "one hundred thirty-nine thousand, two hundred eight".