136560887 has 2 divisors, whose sum is σ = 136560888. Its totient is φ = 136560886.

The previous prime is 136560871. The next prime is 136560889. The reversal of 136560887 is 788065631.

It is a strong prime.

It is an emirp because it is prime and its reverse (788065631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136560887 - 2⁴ = 136560871 is a prime.

Together with 136560889, 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 (136560889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68280443 + 68280444.

It is an arithmetic number, because the mean of its divisors is an integer number (68280444).

Almost surely, 2^136560887 is an apocalyptic number.

136560887 is a deficient number, since it is larger than the sum of its proper divisors (1).

136560887 is an equidigital number, since it uses as much as digits as its factorization.

136560887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 136560887 is about 11685.9268780872. The cubic root of 136560887 is about 514.9623084867.

The spelling of 136560887 in words is "one hundred thirty-six million, five hundred sixty thousand, eight hundred eighty-seven".