242758133 has 2 divisors, whose sum is σ = 242758134. Its totient is φ = 242758132.

The previous prime is 242758129. The next prime is 242758163. The reversal of 242758133 is 331857242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 168143089 + 74615044 = 12967^2 + 8638^2 .

It is a cyclic number.

It is not a de Polignac number, because 242758133 - 2² = 242758129 is a prime.

It is a super-2 number, since 2×242758133² = 117863022275291378, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 242758093 and 242758102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242758163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121379066 + 121379067.

It is an arithmetic number, because the mean of its divisors is an integer number (121379067).

Almost surely, 2^242758133 is an apocalyptic number.

It is an amenable number.

242758133 is a deficient number, since it is larger than the sum of its proper divisors (1).

242758133 is an equidigital number, since it uses as much as digits as its factorization.

242758133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 35.

The square root of 242758133 is about 15580.6974490874. The cubic root of 242758133 is about 623.8180396540.

The spelling of 242758133 in words is "two hundred forty-two million, seven hundred fifty-eight thousand, one hundred thirty-three".