136300309 has 2 divisors, whose sum is σ = 136300310. Its totient is φ = 136300308.

The previous prime is 136300253. The next prime is 136300313. The reversal of 136300309 is 903003631.

136300309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85932900 + 50367409 = 9270^2 + 7097^2 .

It is a cyclic number.

It is not a de Polignac number, because 136300309 - 2¹⁹ = 135776021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136301309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68150154 + 68150155.

It is an arithmetic number, because the mean of its divisors is an integer number (68150155).

Almost surely, 2^136300309 is an apocalyptic number.

It is an amenable number.

136300309 is a deficient number, since it is larger than the sum of its proper divisors (1).

136300309 is an equidigital number, since it uses as much as digits as its factorization.

136300309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 25.

The square root of 136300309 is about 11674.7723318273. The cubic root of 136300309 is about 514.6345589826.

The spelling of 136300309 in words is "one hundred thirty-six million, three hundred thousand, three hundred nine".