135211446122689 has 2 divisors, whose sum is σ = 135211446122690. Its totient is φ = 135211446122688.

The previous prime is 135211446122609. The next prime is 135211446122713. The reversal of 135211446122689 is 986221644112531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135107612016400 + 103834106289 = 11623580^2 + 322233^2 .

It is a cyclic number.

It is not a de Polignac number, because 135211446122689 - 2⁷ = 135211446122561 is a prime.

It is not a weakly prime, because it can be changed into another prime (135211446122609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67605723061344 + 67605723061345.

It is an arithmetic number, because the mean of its divisors is an integer number (67605723061345).

Almost surely, 2^{135211446122689} is an apocalyptic number.

It is an amenable number.

135211446122689 is a deficient number, since it is larger than the sum of its proper divisors (1).

135211446122689 is an equidigital number, since it uses as much as digits as its factorization.

135211446122689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4976640, while the sum is 55.

The spelling of 135211446122689 in words is "one hundred thirty-five trillion, two hundred eleven billion, four hundred forty-six million, one hundred twenty-two thousand, six hundred eighty-nine".