224695909 has 2 divisors, whose sum is σ = 224695910. Its totient is φ = 224695908.

The previous prime is 224695907. The next prime is 224695943. The reversal of 224695909 is 909596422.

224695909 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., 187607809 + 37088100 = 13697^2 + 6090^2 .

It is a cyclic number.

It is not a de Polignac number, because 224695909 - 2¹ = 224695907 is a prime.

Together with 224695907, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224695903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112347954 + 112347955.

It is an arithmetic number, because the mean of its divisors is an integer number (112347955).

Almost surely, 2^224695909 is an apocalyptic number.

It is an amenable number.

224695909 is a deficient number, since it is larger than the sum of its proper divisors (1).

224695909 is an equidigital number, since it uses as much as digits as its factorization.

224695909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 224695909 is about 14989.8602061527. The cubic root of 224695909 is about 607.9460696697.

The spelling of 224695909 in words is "two hundred twenty-four million, six hundred ninety-five thousand, nine hundred nine".