135165757825 has 24 divisors (see below), whose sum is σ = 191889557568. Its totient is φ = 92520396480.

The previous prime is 135165757823. The next prime is 135165757871. The reversal of 135165757825 is 528757561531.

It is a happy number.

It is not a de Polignac number, because 135165757825 - 2¹ = 135165757823 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135165757823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 587422 + ... + 784471.

It is an arithmetic number, because the mean of its divisors is an integer number (7995398232).

Almost surely, 2^135165757825 is an apocalyptic number.

It is an amenable number.

135165757825 is a deficient number, since it is larger than the sum of its proper divisors (56723799743).

135165757825 is a wasteful number, since it uses less digits than its factorization.

135165757825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372473 (or 1372468 counting only the distinct ones).

The product of its digits is 8820000, while the sum is 55.

The spelling of 135165757825 in words is "one hundred thirty-five billion, one hundred sixty-five million, seven hundred fifty-seven thousand, eight hundred twenty-five".