135137748817 has 16 divisors (see below), whose sum is σ = 140099097600. Its totient is φ = 130196828160.

The previous prime is 135137748803. The next prime is 135137748841. The reversal of 135137748817 is 718847731531.

It is a cyclic number.

It is not a de Polignac number, because 135137748817 - 2¹¹ = 135137746769 is a prime.

It is a super-2 number, since 2×135137748817² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135137748887) 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 15 ways as a sum of consecutive naturals, for example, 39850192 + ... + 39853582.

It is an arithmetic number, because the mean of its divisors is an integer number (8756193600).

Almost surely, 2^135137748817 is an apocalyptic number.

It is an amenable number.

135137748817 is a deficient number, since it is larger than the sum of its proper divisors (4961348783).

135137748817 is a wasteful number, since it uses less digits than its factorization.

135137748817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5976.

The product of its digits is 3951360, while the sum is 55.

The spelling of 135137748817 in words is "one hundred thirty-five billion, one hundred thirty-seven million, seven hundred forty-eight thousand, eight hundred seventeen".