135125125 has 16 divisors (see below), whose sum is σ = 174081024. Its totient is φ = 104610000.

The previous prime is 135125119. The next prime is 135125153. The reversal of 135125125 is 521521531.

It is not a de Polignac number, because 135125125 - 2¹⁵ = 135092357 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

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 135125125.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13561 + ... + 21310.

It is an arithmetic number, because the mean of its divisors is an integer number (10880064).

Almost surely, 2^135125125 is an apocalyptic number.

It is an amenable number.

135125125 is a deficient number, since it is larger than the sum of its proper divisors (38955899).

135125125 is an equidigital number, since it uses as much as digits as its factorization.

135125125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34917 (or 34907 counting only the distinct ones).

The product of its digits is 1500, while the sum is 25.

The square root of 135125125 is about 11624.3333142163. Note that the first 4 decimals coincide. The cubic root of 135125125 is about 513.1512245001.

Adding to 135125125 its reverse (521521531), we get a palindrome (656646656).

The spelling of 135125125 in words is "one hundred thirty-five million, one hundred twenty-five thousand, one hundred twenty-five".