135235242 has 24 divisors (see below), whose sum is σ = 293346144. Its totient is φ = 45026664.

The previous prime is 135235241. The next prime is 135235249. The reversal of 135235242 is 242532531.

It is a happy number.

135235242 is a `hidden beast` number, since 135 + 2 + 3 + 524 + 2 = 666.

135235242 is nontrivially palindromic in base 5.

135235242 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (135235241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13873 + ... + 21515.

It is an arithmetic number, because the mean of its divisors is an integer number (12222756).

Almost surely, 2^135235242 is an apocalyptic number.

135235242 is an abundant number, since it is smaller than the sum of its proper divisors (158110902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135235242 is a wasteful number, since it uses less digits than its factorization.

135235242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8634 (or 8631 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 135235242 is about 11629.0688363256. The cubic root of 135235242 is about 513.2905801053.

Adding to 135235242 its reverse (242532531), we get a palindrome (377767773).

The spelling of 135235242 in words is "one hundred thirty-five million, two hundred thirty-five thousand, two hundred forty-two".