242554123 has 4 divisors (see below), whose sum is σ = 277204720. Its totient is φ = 207903528.

The previous prime is 242554111. The next prime is 242554141. The reversal of 242554123 is 321455242.

242554123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321455242 = 2 ⋅160727621.

It is not a de Polignac number, because 242554123 - 2²¹ = 240456971 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242554091 and 242554100.

It is not an unprimeable number, because it can be changed into a prime (242554153) 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, 17325288 + ... + 17325301.

It is an arithmetic number, because the mean of its divisors is an integer number (69301180).

Almost surely, 2^242554123 is an apocalyptic number.

242554123 is a deficient number, since it is larger than the sum of its proper divisors (34650597).

242554123 is an equidigital number, since it uses as much as digits as its factorization.

242554123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34650596.

The product of its digits is 9600, while the sum is 28.

The square root of 242554123 is about 15574.1491902447. The cubic root of 242554123 is about 623.6432418228.

The spelling of 242554123 in words is "two hundred forty-two million, five hundred fifty-four thousand, one hundred twenty-three".