242225 has 6 divisors (see below), whose sum is σ = 300390. Its totient is φ = 193760.

The previous prime is 242201. The next prime is 242227. The reversal of 242225 is 522242.

242225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 18496 + 223729 = 136^2 + 473^2 .

It is not a de Polignac number, because 242225 - 2⁶ = 242161 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2⁸ + 4 + 2¹⁵ + 2¹⁶ + 2¹⁶ + 5⁷ .

It is not an unprimeable number, because it can be changed into a prime (242227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4820 + ... + 4869.

It is an arithmetic number, because the mean of its divisors is an integer number (50065).

2²⁴²²²⁵ is an apocalyptic number.

242225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

242225 is a deficient number, since it is larger than the sum of its proper divisors (58165).

242225 is an equidigital number, since it uses as much as digits as its factorization.

242225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9699 (or 9694 counting only the distinct ones).

The product of its digits is 320, while the sum is 17.

The square root of 242225 is about 492.1635906891. The cubic root of 242225 is about 62.3361039182.

Adding to 242225 its sum of digits (17), we get a palindrome (242242).

Adding to 242225 its reverse (522242), we get a palindrome (764467).

The spelling of 242225 in words is "two hundred forty-two thousand, two hundred twenty-five".