136300317721 has 2 divisors, whose sum is σ = 136300317722. Its totient is φ = 136300317720.

The previous prime is 136300317691. The next prime is 136300317757. The reversal of 136300317721 is 127713003631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120590202121 + 15710115600 = 347261^2 + 125340^2 .

It is a cyclic number.

It is not a de Polignac number, because 136300317721 - 2¹³ = 136300309529 is a prime.

It is a super-2 number, since 2×136300317721² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (136300317781) 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, 68150158860 + 68150158861.

It is an arithmetic number, because the mean of its divisors is an integer number (68150158861).

Almost surely, 2^136300317721 is an apocalyptic number.

It is an amenable number.

136300317721 is a deficient number, since it is larger than the sum of its proper divisors (1).

136300317721 is an equidigital number, since it uses as much as digits as its factorization.

136300317721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15876, while the sum is 34.

The spelling of 136300317721 in words is "one hundred thirty-six billion, three hundred million, three hundred seventeen thousand, seven hundred twenty-one".