136216589 has 2 divisors, whose sum is σ = 136216590. Its totient is φ = 136216588.

The previous prime is 136216543. The next prime is 136216607. The reversal of 136216589 is 985612631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132480100 + 3736489 = 11510^2 + 1933^2 .

It is a cyclic number.

It is not a de Polignac number, because 136216589 - 2¹² = 136212493 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136216889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68108294 + 68108295.

It is an arithmetic number, because the mean of its divisors is an integer number (68108295).

Almost surely, 2^136216589 is an apocalyptic number.

It is an amenable number.

136216589 is a deficient number, since it is larger than the sum of its proper divisors (1).

136216589 is an equidigital number, since it uses as much as digits as its factorization.

136216589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 41.

The square root of 136216589 is about 11671.1862721833. The cubic root of 136216589 is about 514.5291690779.

The spelling of 136216589 in words is "one hundred thirty-six million, two hundred sixteen thousand, five hundred eighty-nine".