136585277 has 2 divisors, whose sum is σ = 136585278. Its totient is φ = 136585276.

The previous prime is 136585237. The next prime is 136585279. The reversal of 136585277 is 772585631.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91278916 + 45306361 = 9554^2 + 6731^2 .

It is an emirp because it is prime and its reverse (772585631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136585277 - 2⁶ = 136585213 is a prime.

Together with 136585279, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136585279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68292638 + 68292639.

It is an arithmetic number, because the mean of its divisors is an integer number (68292639).

Almost surely, 2^136585277 is an apocalyptic number.

It is an amenable number.

136585277 is a deficient number, since it is larger than the sum of its proper divisors (1).

136585277 is an equidigital number, since it uses as much as digits as its factorization.

136585277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 352800, while the sum is 44.

The square root of 136585277 is about 11686.9703944179. The cubic root of 136585277 is about 514.9929643680.

The spelling of 136585277 in words is "one hundred thirty-six million, five hundred eighty-five thousand, two hundred seventy-seven".