224911681 has 2 divisors, whose sum is σ = 224911682. Its totient is φ = 224911680.

The previous prime is 224911679. The next prime is 224911693. The reversal of 224911681 is 186119422.

It is a happy number.

224911681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112890625 + 112021056 = 10625^2 + 10584^2 .

It is a cyclic number.

It is not a de Polignac number, because 224911681 - 2¹ = 224911679 is a prime.

It is a super-2 number, since 2×224911681² = 101170528500491522, which contains 22 as substring.

Together with 224911679, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (224911601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112455840 + 112455841.

It is an arithmetic number, because the mean of its divisors is an integer number (112455841).

Almost surely, 2^224911681 is an apocalyptic number.

It is an amenable number.

224911681 is a deficient number, since it is larger than the sum of its proper divisors (1).

224911681 is an equidigital number, since it uses as much as digits as its factorization.

224911681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 34.

The square root of 224911681 is about 14997.0557443786. The cubic root of 224911681 is about 608.1406078094.

The spelling of 224911681 in words is "two hundred twenty-four million, nine hundred eleven thousand, six hundred eighty-one".