242554231 has 4 divisors (see below), whose sum is σ = 250918200. Its totient is φ = 234190264.

The previous prime is 242554189. The next prime is 242554241. The reversal of 242554231 is 132455242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242554231 - 2⁹ = 242553719 is a prime.

It is a super-2 number, since 2×242554231² = 117665109952002722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242554231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242554241) 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, 4181941 + ... + 4181998.

It is an arithmetic number, because the mean of its divisors is an integer number (62729550).

Almost surely, 2^242554231 is an apocalyptic number.

242554231 is a deficient number, since it is larger than the sum of its proper divisors (8363969).

242554231 is an equidigital number, since it uses as much as digits as its factorization.

242554231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8363968.

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

The square root of 242554231 is about 15574.1526575284. The cubic root of 242554231 is about 623.6433343842.

The spelling of 242554231 in words is "two hundred forty-two million, five hundred fifty-four thousand, two hundred thirty-one".