136723730540489 has 2 divisors, whose sum is σ = 136723730540490. Its totient is φ = 136723730540488.

The previous prime is 136723730540447. The next prime is 136723730540531. The reversal of 136723730540489 is 984045037327631.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (136723730540447) and next prime (136723730540531).

It can be written as a sum of positive squares in only one way, i.e., 107252783989264 + 29470946551225 = 10356292^2 + 5428715^2 .

It is a cyclic number.

It is not a de Polignac number, because 136723730540489 - 2¹⁶ = 136723730474953 is a prime.

It is not a weakly prime, because it can be changed into another prime (136723730540989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68361865270244 + 68361865270245.

It is an arithmetic number, because the mean of its divisors is an integer number (68361865270245).

It is a 1-persistent number, because it is pandigital, but 2⋅136723730540489 = 273447461080978 is not.

Almost surely, 2^{136723730540489} is an apocalyptic number.

It is an amenable number.

136723730540489 is a deficient number, since it is larger than the sum of its proper divisors (1).

136723730540489 is an equidigital number, since it uses as much as digits as its factorization.

136723730540489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 91445760, while the sum is 62.

The spelling of 136723730540489 in words is "one hundred thirty-six trillion, seven hundred twenty-three billion, seven hundred thirty million, five hundred forty thousand, four hundred eighty-nine".