135613252 has 12 divisors (see below), whose sum is σ = 237410320. Its totient is φ = 67781736.

The previous prime is 135613249. The next prime is 135613253. The reversal of 135613252 is 252316531.

It is a self number, because there is not a number n which added to its sum of digits gives 135613252.

It is not an unprimeable number, because it can be changed into a prime (135613253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11899 + ... + 20317.

Almost surely, 2^135613252 is an apocalyptic number.

It is an amenable number.

135613252 is a deficient number, since it is larger than the sum of its proper divisors (101797068).

135613252 is a wasteful number, since it uses less digits than its factorization.

135613252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12450 (or 12448 counting only the distinct ones).

The product of its digits is 5400, while the sum is 28.

The square root of 135613252 is about 11645.3103007176. The cubic root of 135613252 is about 513.7683857080.

Adding to 135613252 its reverse (252316531), we get a palindrome (387929783).

The spelling of 135613252 in words is "one hundred thirty-five million, six hundred thirteen thousand, two hundred fifty-two".