135065585849 has 4 divisors (see below), whose sum is σ = 135386407140. Its totient is φ = 134744764560.

The previous prime is 135065585833. The next prime is 135065585899. The reversal of 135065585849 is 948585560531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33898333225 + 101167252624 = 184115^2 + 318068^2 .

It is a cyclic number.

It is not a de Polignac number, because 135065585849 - 2⁴ = 135065585833 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (135065585899) 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 in 3 ways as a sum of consecutive naturals, for example, 160410014 + ... + 160410855.

It is an arithmetic number, because the mean of its divisors is an integer number (33846601785).

Almost surely, 2^135065585849 is an apocalyptic number.

It is an amenable number.

135065585849 is a deficient number, since it is larger than the sum of its proper divisors (320821291).

135065585849 is an equidigital number, since it uses as much as digits as its factorization.

135065585849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320821290.

The product of its (nonzero) digits is 25920000, while the sum is 59.

The spelling of 135065585849 in words is "one hundred thirty-five billion, sixty-five million, five hundred eighty-five thousand, eight hundred forty-nine".