16139 has 2 divisors, whose sum is σ = 16140. Its totient is φ = 16138.

The previous prime is 16127. The next prime is 16141. The reversal of 16139 is 93161.

16139 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16139 - 2¹² = 12043 is a prime.

Together with 16141, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16139.

It is not a weakly prime, because it can be changed into another prime (16189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8069 + 8070.

It is an arithmetic number, because the mean of its divisors is an integer number (8070).

2¹⁶¹³⁹ is an apocalyptic number.

16139 is a deficient number, since it is larger than the sum of its proper divisors (1).

16139 is an equidigital number, since it uses as much as digits as its factorization.

16139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 162, while the sum is 20.

The square root of 16139 is about 127.0393639783. The cubic root of 16139 is about 25.2711811292.

The spelling of 16139 in words is "sixteen thousand, one hundred thirty-nine".