135305252 has 12 divisors (see below), whose sum is σ = 237314700. Its totient is φ = 67501056.

The previous prime is 135305239. The next prime is 135305257. The reversal of 135305252 is 252503531.

It can be written as a sum of positive squares in 2 ways, for example, as 78393316 + 56911936 = 8854^2 + 7544^2 .

It is a super-2 number, since 2×135305252² = 36615022437567008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135305257) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 35873 + ... + 39464.

It is an arithmetic number, because the mean of its divisors is an integer number (19776225).

Almost surely, 2^135305252 is an apocalyptic number.

It is an amenable number.

135305252 is a deficient number, since it is larger than the sum of its proper divisors (102009448).

135305252 is a wasteful number, since it uses less digits than its factorization.

135305252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75790 (or 75788 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 135305252 is about 11632.0785760757. The cubic root of 135305252 is about 513.3791400439.

Adding to 135305252 its reverse (252503531), we get a palindrome (387808783).

The spelling of 135305252 in words is "one hundred thirty-five million, three hundred five thousand, two hundred fifty-two".