136859 has 2 divisors, whose sum is σ = 136860. Its totient is φ = 136858.

The previous prime is 136849. The next prime is 136861. The reversal of 136859 is 958631.

136859 is digitally balanced in base 2, 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 136859 - 2⁸ = 136603 is a prime.

It is a super-3 number, since 3×136859³ = 7690265643863337, which contains 333 as substring.

It is a Sophie Germain prime.

Together with 136861, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (136849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68429 + 68430.

It is an arithmetic number, because the mean of its divisors is an integer number (68430).

2¹³⁶⁸⁵⁹ is an apocalyptic number.

136859 is a deficient number, since it is larger than the sum of its proper divisors (1).

136859 is an equidigital number, since it uses as much as digits as its factorization.

136859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 32.

The square root of 136859 is about 369.9445904457. The cubic root of 136859 is about 51.5336757784.

The spelling of 136859 in words is "one hundred thirty-six thousand, eight hundred fifty-nine".