135502443451505 has 16 divisors (see below), whose sum is σ = 176844620799504. Its totient is φ = 99072616684800.

The previous prime is 135502443451483. The next prime is 135502443451553. The reversal of 135502443451505 is 505154344205531.

It can be written as a sum of positive squares in 8 ways, for example, as 7404798822976 + 128097644628529 = 2721176^2 + 11318023^2 .

It is not a de Polignac number, because 135502443451505 - 2¹⁰ = 135502443450481 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135502443451505.

It is an unprimeable number.

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, 10320057674 + ... + 10320070803.

It is an arithmetic number, because the mean of its divisors is an integer number (11052788799969).

Almost surely, 2^{135502443451505} is an apocalyptic number.

It is an amenable number.

135502443451505 is a deficient number, since it is larger than the sum of its proper divisors (41342177347999).

135502443451505 is a wasteful number, since it uses less digits than its factorization.

135502443451505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20640128596.

The product of its (nonzero) digits is 3600000, while the sum is 47.

The spelling of 135502443451505 in words is "one hundred thirty-five trillion, five hundred two billion, four hundred forty-three million, four hundred fifty-one thousand, five hundred five".