136586887 has 2 divisors, whose sum is σ = 136586888. Its totient is φ = 136586886.

The previous prime is 136586881. The next prime is 136586911. The reversal of 136586887 is 788685631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136586887 - 2¹⁹ = 136062599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136586881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68293443 + 68293444.

It is an arithmetic number, because the mean of its divisors is an integer number (68293444).

Almost surely, 2^136586887 is an apocalyptic number.

136586887 is a deficient number, since it is larger than the sum of its proper divisors (1).

136586887 is an equidigital number, since it uses as much as digits as its factorization.

136586887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1935360, while the sum is 52.

The square root of 136586887 is about 11687.0392743415. The cubic root of 136586887 is about 514.9949878546.

The spelling of 136586887 in words is "one hundred thirty-six million, five hundred eighty-six thousand, eight hundred eighty-seven".