242000243 has 4 divisors (see below), whose sum is σ = 242033880. Its totient is φ = 241966608.

The previous prime is 242000203. The next prime is 242000267. The reversal of 242000243 is 342000242.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 242000243 - 2¹² = 241996147 is a prime.

It is a super-2 number, since 2×242000243² = 117128235224118098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242000203) 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, 1178 + ... + 22031.

It is an arithmetic number, because the mean of its divisors is an integer number (60508470).

Almost surely, 2^242000243 is an apocalyptic number.

242000243 is a deficient number, since it is larger than the sum of its proper divisors (33637).

242000243 is a wasteful number, since it uses less digits than its factorization.

242000243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33636.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 242000243 is about 15556.3569964179. The cubic root of 242000243 is about 623.1681770179.

Adding to 242000243 its reverse (342000242), we get a palindrome (584000485).

Subtracting 242000243 from its reverse (342000242), we obtain a palindrome (99999999).

The spelling of 242000243 in words is "two hundred forty-two million, two hundred forty-three", and thus it is an aban number.