242900243 has 4 divisors (see below), whose sum is σ = 243420840. Its totient is φ = 242379648.

The previous prime is 242900197. The next prime is 242900293. The reversal of 242900243 is 342009242.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342009242 = 2 ⋅171004621.

It is a cyclic number.

It is not a de Polignac number, because 242900243 - 2¹⁶ = 242834707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242900293) 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, 259598 + ... + 260531.

It is an arithmetic number, because the mean of its divisors is an integer number (60855210).

Almost surely, 2^242900243 is an apocalyptic number.

242900243 is a deficient number, since it is larger than the sum of its proper divisors (520597).

242900243 is an equidigital number, since it uses as much as digits as its factorization.

242900243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520596.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 242900243 is about 15585.2572323975. The cubic root of 242900243 is about 623.9397430788.

Adding to 242900243 its reverse (342009242), we get a palindrome (584909485).

The spelling of 242900243 in words is "two hundred forty-two million, nine hundred thousand, two hundred forty-three".