135135142 has 8 divisors (see below), whose sum is σ = 214626456. Its totient is φ = 63592992.

The previous prime is 135135113. The next prime is 135135167. The reversal of 135135142 is 241531531.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1987248 + ... + 1987315.

It is an arithmetic number, because the mean of its divisors is an integer number (26828307).

Almost surely, 2^135135142 is an apocalyptic number.

135135142 is a deficient number, since it is larger than the sum of its proper divisors (79491314).

135135142 is a wasteful number, since it uses less digits than its factorization.

135135142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3974582.

The product of its digits is 1800, while the sum is 25.

The square root of 135135142 is about 11624.7641696509. The cubic root of 135135142 is about 513.1639043744.

Adding to 135135142 its reverse (241531531), we get a palindrome (376666673).

The spelling of 135135142 in words is "one hundred thirty-five million, one hundred thirty-five thousand, one hundred forty-two".