242135133 has 4 divisors (see below), whose sum is σ = 322846848. Its totient is φ = 161423420.

The previous prime is 242135129. The next prime is 242135189. The reversal of 242135133 is 331531242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 242135133 - 2² = 242135129 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242835133) 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, 40355853 + ... + 40355858.

It is an arithmetic number, because the mean of its divisors is an integer number (80711712).

Almost surely, 2^242135133 is an apocalyptic number.

It is an amenable number.

242135133 is a deficient number, since it is larger than the sum of its proper divisors (80711715).

242135133 is an equidigital number, since it uses as much as digits as its factorization.

242135133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80711714.

The product of its digits is 2160, while the sum is 24.

The square root of 242135133 is about 15560.6919190632. The cubic root of 242135133 is about 623.2839393564.

Adding to 242135133 its reverse (331531242), we get a palindrome (573666375).

The spelling of 242135133 in words is "two hundred forty-two million, one hundred thirty-five thousand, one hundred thirty-three".