135352511525 has 24 divisors (see below), whose sum is σ = 209251470144. Its totient is φ = 84375590400.

The previous prime is 135352511521. The next prime is 135352511551. The reversal of 135352511525 is 525115253531.

It is not a de Polignac number, because 135352511525 - 2² = 135352511521 is a prime.

It is a super-2 number, since 2×135352511525² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135352511521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35154572 + ... + 35158421.

It is an arithmetic number, because the mean of its divisors is an integer number (8718811256).

Almost surely, 2^135352511525 is an apocalyptic number.

It is an amenable number.

135352511525 is a deficient number, since it is larger than the sum of its proper divisors (73898958619).

135352511525 is a wasteful number, since it uses less digits than its factorization.

135352511525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70313021 (or 70313016 counting only the distinct ones).

The product of its digits is 112500, while the sum is 38.

The spelling of 135352511525 in words is "one hundred thirty-five billion, three hundred fifty-two million, five hundred eleven thousand, five hundred twenty-five".