135505503351125 has 16 divisors (see below), whose sum is σ = 170691343602624. Its totient is φ = 107391277411600.

The previous prime is 135505503351091. The next prime is 135505503351139. The reversal of 135505503351125 is 521153305505531.

It is a de Polignac number, because none of the positive numbers 2^k-135505503351125 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5065612919 + ... + 5065639668.

It is an arithmetic number, because the mean of its divisors is an integer number (10668208975164).

Almost surely, 2^{135505503351125} is an apocalyptic number.

It is an amenable number.

135505503351125 is a deficient number, since it is larger than the sum of its proper divisors (35185840251499).

135505503351125 is a wasteful number, since it uses less digits than its factorization.

135505503351125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10131252709 (or 10131252699 counting only the distinct ones).

The product of its (nonzero) digits is 843750, while the sum is 44.

Adding to 135505503351125 its reverse (521153305505531), we get a palindrome (656658808856656).

The spelling of 135505503351125 in words is "one hundred thirty-five trillion, five hundred five billion, five hundred three million, three hundred fifty-one thousand, one hundred twenty-five".