135308536140681 has 12 divisors (see below), whose sum is σ = 195446217223920. Its totient is φ = 90205435109880.

The previous prime is 135308536140667. The next prime is 135308536140689. The reversal of 135308536140681 is 186041635803531.

135308536140681 is a `hidden beast` number, since 1 + 3 + 5 + 3 + 0 + 8 + 536 + 1 + 40 + 68 + 1 = 666.

It is not a de Polignac number, because 135308536140681 - 2¹³ = 135308536132489 is a prime.

It is a super-2 number, since 2×135308536140681² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135308536140689) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17923935 + ... + 24328676.

It is an arithmetic number, because the mean of its divisors is an integer number (16287184768660).

Almost surely, 2^{135308536140681} is an apocalyptic number.

It is an amenable number.

135308536140681 is a deficient number, since it is larger than the sum of its proper divisors (60137681083239).

135308536140681 is a wasteful number, since it uses less digits than its factorization.

135308536140681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42608436 (or 42608433 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 135308536140681 in words is "one hundred thirty-five trillion, three hundred eight billion, five hundred thirty-six million, one hundred forty thousand, six hundred eighty-one".