136139 has 2 divisors, whose sum is σ = 136140. Its totient is φ = 136138.

The previous prime is 136133. The next prime is 136163. The reversal of 136139 is 931631.

136139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136139 is a prime.

It is a Chen prime.

It is equal to p₁₂₆₇₇ and since 136139 and 12677 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (136133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68069 + 68070.

It is an arithmetic number, because the mean of its divisors is an integer number (68070).

2¹³⁶¹³⁹ is an apocalyptic number.

136139 is a deficient number, since it is larger than the sum of its proper divisors (1).

136139 is an equidigital number, since it uses as much as digits as its factorization.

136139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 486, while the sum is 23.

The square root of 136139 is about 368.9701884977. The cubic root of 136139 is about 51.4431458546.

The spelling of 136139 in words is "one hundred thirty-six thousand, one hundred thirty-nine".