224959681 has 2 divisors, whose sum is σ = 224959682. Its totient is φ = 224959680.

The previous prime is 224959627. The next prime is 224959697. The reversal of 224959681 is 186959422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 179801281 + 45158400 = 13409^2 + 6720^2 .

It is a cyclic number.

It is not a de Polignac number, because 224959681 - 2¹¹ = 224957633 is a prime.

It is a super-2 number, since 2×224959681² = 101213716151243522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (224959081) 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, 112479840 + 112479841.

It is an arithmetic number, because the mean of its divisors is an integer number (112479841).

Almost surely, 2^224959681 is an apocalyptic number.

It is an amenable number.

224959681 is a deficient number, since it is larger than the sum of its proper divisors (1).

224959681 is an equidigital number, since it uses as much as digits as its factorization.

224959681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 46.

The square root of 224959681 is about 14998.6559731197. The cubic root of 224959681 is about 608.1838672682.

The spelling of 224959681 in words is "two hundred twenty-four million, nine hundred fifty-nine thousand, six hundred eighty-one".