242316133 has 4 divisors (see below), whose sum is σ = 242392588. Its totient is φ = 242239680.

The previous prime is 242316091. The next prime is 242316157. The reversal of 242316133 is 331613242.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 331613242 = 2 ⋅165806621.

It can be written as a sum of positive squares in 2 ways, for example, as 215296929 + 27019204 = 14673^2 + 5198^2 .

It is a cyclic number.

It is not a de Polignac number, because 242316133 - 2²⁵ = 208761701 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242316098 and 242316107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242316433) 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, 33258 + ... + 39883.

It is an arithmetic number, because the mean of its divisors is an integer number (60598147).

Almost surely, 2^242316133 is an apocalyptic number.

It is an amenable number.

242316133 is a deficient number, since it is larger than the sum of its proper divisors (76455).

242316133 is an equidigital number, since it uses as much as digits as its factorization.

242316133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76454.

The product of its digits is 2592, while the sum is 25.

The square root of 242316133 is about 15566.5067693430. The cubic root of 242316133 is about 623.4392056783.

Adding to 242316133 its reverse (331613242), we get a palindrome (573929375).

The spelling of 242316133 in words is "two hundred forty-two million, three hundred sixteen thousand, one hundred thirty-three".