135105242 has 16 divisors (see below), whose sum is σ = 205837632. Its totient is φ = 66498720.

The previous prime is 135105233. The next prime is 135105259. The reversal of 135105242 is 242501531.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50318 + ... + 52934.

It is an arithmetic number, because the mean of its divisors is an integer number (12864852).

Almost surely, 2^135105242 is an apocalyptic number.

135105242 is a deficient number, since it is larger than the sum of its proper divisors (70732390).

135105242 is a wasteful number, since it uses less digits than its factorization.

135105242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3013.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 135105242 is about 11623.4780509106. The cubic root of 135105242 is about 513.1260540361.

Adding to 135105242 its reverse (242501531), we get a palindrome (377606773).

The spelling of 135105242 in words is "one hundred thirty-five million, one hundred five thousand, two hundred forty-two".