242043133 has 4 divisors (see below), whose sum is σ = 249851008. Its totient is φ = 234235260.

The previous prime is 242043121. The next prime is 242043143. The reversal of 242043133 is 331340242.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 331340242 = 2 ⋅165670121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242043133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242043143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3903891 + ... + 3903952.

It is an arithmetic number, because the mean of its divisors is an integer number (62462752).

Almost surely, 2^242043133 is an apocalyptic number.

It is an amenable number.

242043133 is a deficient number, since it is larger than the sum of its proper divisors (7807875).

242043133 is an equidigital number, since it uses as much as digits as its factorization.

242043133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7807874.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 242043133 is about 15557.7354714624. The cubic root of 242043133 is about 623.2049897968.

Adding to 242043133 its reverse (331340242), we get a palindrome (573383375).

The spelling of 242043133 in words is "two hundred forty-two million, forty-three thousand, one hundred thirty-three".