242021133 has 12 divisors (see below), whose sum is σ = 350714208. Its totient is φ = 160826760.

The previous prime is 242021119. The next prime is 242021141. The reversal of 242021133 is 331120242.

242021133 is a `hidden beast` number, since 2 + 420 + 211 + 33 = 666.

It is not a de Polignac number, because 242021133 - 2⁹ = 242020621 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242021173) 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, 40435 + ... + 46032.

It is an arithmetic number, because the mean of its divisors is an integer number (29226184).

Almost surely, 2^242021133 is an apocalyptic number.

It is an amenable number.

242021133 is a deficient number, since it is larger than the sum of its proper divisors (108693075).

242021133 is a wasteful number, since it uses less digits than its factorization.

242021133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86784 (or 86781 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 242021133 is about 15557.0284116215. The cubic root of 242021133 is about 623.1861075903.

Adding to 242021133 its reverse (331120242), we get a palindrome (573141375).

The spelling of 242021133 in words is "two hundred forty-two million, twenty-one thousand, one hundred thirty-three".