242241 has 4 divisors (see below), whose sum is σ = 322992. Its totient is φ = 161492.

The previous prime is 242227. The next prime is 242243. The reversal of 242241 is 142242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242241 is a prime.

It is a D-number.

It is a plaindrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 242241.

It is not an unprimeable number, because it can be changed into a prime (242243) 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, 40371 + ... + 40376.

It is an arithmetic number, because the mean of its divisors is an integer number (80748).

2²⁴²²⁴¹ is an apocalyptic number.

It is an amenable number.

242241 is a deficient number, since it is larger than the sum of its proper divisors (80751).

242241 is an equidigital number, since it uses as much as digits as its factorization.

242241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80750.

The product of its digits is 128, while the sum is 15.

The square root of 242241 is about 492.1798451786. The cubic root of 242241 is about 62.3374764103.

Adding to 242241 its reverse (142242), we get a palindrome (384483).

Subtracting from 242241 its reverse (142242), we obtain a palindrome (99999).

The spelling of 242241 in words is "two hundred forty-two thousand, two hundred forty-one", and thus it is an iban number.