136077320209 has 2 divisors, whose sum is σ = 136077320210. Its totient is φ = 136077320208.

The previous prime is 136077320179. The next prime is 136077320231. The reversal of 136077320209 is 902023770631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129553204225 + 6524115984 = 359935^2 + 80772^2 .

It is a cyclic number.

It is not a de Polignac number, because 136077320209 - 2³³ = 127487385617 is a prime.

It is not a weakly prime, because it can be changed into another prime (136077320279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68038660104 + 68038660105.

It is an arithmetic number, because the mean of its divisors is an integer number (68038660105).

Almost surely, 2^136077320209 is an apocalyptic number.

It is an amenable number.

136077320209 is a deficient number, since it is larger than the sum of its proper divisors (1).

136077320209 is an equidigital number, since it uses as much as digits as its factorization.

136077320209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 95256, while the sum is 40.

The spelling of 136077320209 in words is "one hundred thirty-six billion, seventy-seven million, three hundred twenty thousand, two hundred nine".