242585243 has 4 divisors (see below), whose sum is σ = 243461280. Its totient is φ = 241709208.

The previous prime is 242585237. The next prime is 242585249. The reversal of 242585243 is 342585242.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342585242 = 2 ⋅171292621.

It is an interprime number because it is at equal distance from previous prime (242585237) and next prime (242585249).

It is a cyclic number.

It is not a de Polignac number, because 242585243 - 2¹⁶ = 242519707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242585249) 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, 437603 + ... + 438156.

It is an arithmetic number, because the mean of its divisors is an integer number (60865320).

Almost surely, 2^242585243 is an apocalyptic number.

242585243 is a deficient number, since it is larger than the sum of its proper divisors (876037).

242585243 is an equidigital number, since it uses as much as digits as its factorization.

242585243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876036.

The product of its digits is 76800, while the sum is 35.

The square root of 242585243 is about 15575.1482496957. The cubic root of 242585243 is about 623.6699120871.

Subtracting 242585243 from its reverse (342585242), we obtain a palindrome (99999999).

The spelling of 242585243 in words is "two hundred forty-two million, five hundred eighty-five thousand, two hundred forty-three".