135282808123085 has 12 divisors (see below), whose sum is σ = 188843756645628. Its totient is φ = 92765354141376.

The previous prime is 135282808123009. The next prime is 135282808123103. The reversal of 135282808123085 is 580321808282531.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 68287977431716 + 66994830691369 = 8263654^2 + 8185037^2 .

It is not a de Polignac number, because 135282808123085 - 2¹⁴ = 135282808106701 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135282808123085.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 276087363272 + ... + 276087363761.

It is an arithmetic number, because the mean of its divisors is an integer number (15736979720469).

Almost surely, 2^{135282808123085} is an apocalyptic number.

It is an amenable number.

135282808123085 is a deficient number, since it is larger than the sum of its proper divisors (53560948522543).

135282808123085 is an equidigital number, since it uses as much as digits as its factorization.

135282808123085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552174727052 (or 552174727045 counting only the distinct ones).

The product of its (nonzero) digits is 7372800, while the sum is 56.

The spelling of 135282808123085 in words is "one hundred thirty-five trillion, two hundred eighty-two billion, eight hundred eight million, one hundred twenty-three thousand, eighty-five".