135895449589 has 2 divisors, whose sum is σ = 135895449590. Its totient is φ = 135895449588.

The previous prime is 135895449581. The next prime is 135895449659. The reversal of 135895449589 is 985944598531.

It is an a-pointer prime, because the next prime (135895449659) can be obtained adding 135895449589 to its sum of digits (70).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81934482564 + 53960967025 = 286242^2 + 232295^2 .

It is a cyclic number.

It is not a de Polignac number, because 135895449589 - 2³ = 135895449581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135895449581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67947724794 + 67947724795.

It is an arithmetic number, because the mean of its divisors is an integer number (67947724795).

Almost surely, 2^135895449589 is an apocalyptic number.

It is an amenable number.

135895449589 is a deficient number, since it is larger than the sum of its proper divisors (1).

135895449589 is an equidigital number, since it uses as much as digits as its factorization.

135895449589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936000, while the sum is 70.

The spelling of 135895449589 in words is "one hundred thirty-five billion, eight hundred ninety-five million, four hundred forty-nine thousand, five hundred eighty-nine".