135005225 has 6 divisors (see below), whose sum is σ = 167406510. Its totient is φ = 108004160.

The previous prime is 135005219. The next prime is 135005249. The reversal of 135005225 is 522500531.

It can be written as a sum of positive squares in 3 ways, for example, as 3031081 + 131974144 = 1741^2 + 11488^2 .

It is not a de Polignac number, because 135005225 - 2⁶ = 135005161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135005225.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2700080 + ... + 2700129.

It is an arithmetic number, because the mean of its divisors is an integer number (27901085).

Almost surely, 2^135005225 is an apocalyptic number.

It is an amenable number.

135005225 is a deficient number, since it is larger than the sum of its proper divisors (32401285).

135005225 is an equidigital number, since it uses as much as digits as its factorization.

135005225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5400219 (or 5400214 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 135005225 is about 11619.1748846465. The cubic root of 135005225 is about 512.9994021579. Note that the first 3 decimals are identical.

Adding to 135005225 its reverse (522500531), we get a palindrome (657505756).

The spelling of 135005225 in words is "one hundred thirty-five million, five thousand, two hundred twenty-five".