135064635121 has 4 divisors (see below), whose sum is σ = 145454222452. Its totient is φ = 124675047792.

The previous prime is 135064635109. The next prime is 135064635157. The reversal of 135064635121 is 121536460531.

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 57905684496 + 77158950625 = 240636^2 + 277775^2 .

It is a cyclic number.

It is not a de Polignac number, because 135064635121 - 2⁹ = 135064634609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135064632121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5194793646 + ... + 5194793671.

It is an arithmetic number, because the mean of its divisors is an integer number (36363555613).

Almost surely, 2^135064635121 is an apocalyptic number.

It is an amenable number.

135064635121 is a deficient number, since it is larger than the sum of its proper divisors (10389587331).

135064635121 is a wasteful number, since it uses less digits than its factorization.

135064635121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10389587330.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 135064635121 in words is "one hundred thirty-five billion, sixty-four million, six hundred thirty-five thousand, one hundred twenty-one".