136020315989 has 2 divisors, whose sum is σ = 136020315990. Its totient is φ = 136020315988.

The previous prime is 136020315971. The next prime is 136020316027. The reversal of 136020315989 is 989513020631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135181228900 + 839087089 = 367670^2 + 28967^2 .

It is a cyclic number.

It is not a de Polignac number, because 136020315989 - 2²⁰ = 136019267413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136020311989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68010157994 + 68010157995.

It is an arithmetic number, because the mean of its divisors is an integer number (68010157995).

Almost surely, 2^136020315989 is an apocalyptic number.

It is an amenable number.

136020315989 is a deficient number, since it is larger than the sum of its proper divisors (1).

136020315989 is an equidigital number, since it uses as much as digits as its factorization.

136020315989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 349920, while the sum is 47.

The spelling of 136020315989 in words is "one hundred thirty-six billion, twenty million, three hundred fifteen thousand, nine hundred eighty-nine".