135225172 has 6 divisors (see below), whose sum is σ = 236644058. Its totient is φ = 67612584.

The previous prime is 135225161. The next prime is 135225197. The reversal of 135225172 is 271522531.

135225172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 100721296 + 34503876 = 10036^2 + 5874^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 135225172.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16903143 + ... + 16903150.

Almost surely, 2^135225172 is an apocalyptic number.

It is an amenable number.

135225172 is a deficient number, since it is larger than the sum of its proper divisors (101418886).

135225172 is a wasteful number, since it uses less digits than its factorization.

135225172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33806297 (or 33806295 counting only the distinct ones).

The product of its digits is 4200, while the sum is 28.

The square root of 135225172 is about 11628.6358615274. The cubic root of 135225172 is about 513.2778394312.

The spelling of 135225172 in words is "one hundred thirty-five million, two hundred twenty-five thousand, one hundred seventy-two".