242224249 has 2 divisors, whose sum is σ = 242224250. Its totient is φ = 242224248.

The previous prime is 242224243. The next prime is 242224253. The reversal of 242224249 is 942422242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 232257600 + 9966649 = 15240^2 + 3157^2 .

It is a cyclic number.

It is not a de Polignac number, because 242224249 - 2¹³ = 242216057 is a prime.

It is a super-2 number, since 2×242224249² = 117345173607228002, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 242224249.

It is not a weakly prime, because it can be changed into another prime (242224243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121112124 + 121112125.

It is an arithmetic number, because the mean of its divisors is an integer number (121112125).

Almost surely, 2^242224249 is an apocalyptic number.

It is an amenable number.

242224249 is a deficient number, since it is larger than the sum of its proper divisors (1).

242224249 is an equidigital number, since it uses as much as digits as its factorization.

242224249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18432, while the sum is 31.

The square root of 242224249 is about 15563.5551529848. Note that the first 3 decimals coincide. The cubic root of 242224249 is about 623.3603949538.

The spelling of 242224249 in words is "two hundred forty-two million, two hundred twenty-four thousand, two hundred forty-nine".