33135142 has 8 divisors (see below), whose sum is σ = 52626456. Its totient is φ = 15592992.

The previous prime is 33135133. The next prime is 33135143. The reversal of 33135142 is 24153133.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33135143) 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, 487248 + ... + 487315.

It is an arithmetic number, because the mean of its divisors is an integer number (6578307).

Almost surely, 2^33135142 is an apocalyptic number.

33135142 is a deficient number, since it is larger than the sum of its proper divisors (19491314).

33135142 is a wasteful number, since it uses less digits than its factorization.

33135142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974582.

The product of its digits is 1080, while the sum is 22.

The square root of 33135142 is about 5756.3132298373. The cubic root of 33135142 is about 321.1906877736.

Adding to 33135142 its reverse (24153133), we get a palindrome (57288275).

Subtracting from 33135142 its reverse (24153133), we obtain a square (8982009 = 2997²).

The spelling of 33135142 in words is "thirty-three million, one hundred thirty-five thousand, one hundred forty-two".