224140909 has 2 divisors, whose sum is σ = 224140910. Its totient is φ = 224140908.

The previous prime is 224140883. The next prime is 224140963. The reversal of 224140909 is 909041422.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137241225 + 86899684 = 11715^2 + 9322^2 .

It is a cyclic number.

It is not a de Polignac number, because 224140909 - 2²³ = 215752301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224140009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112070454 + 112070455.

It is an arithmetic number, because the mean of its divisors is an integer number (112070455).

Almost surely, 2^224140909 is an apocalyptic number.

It is an amenable number.

224140909 is a deficient number, since it is larger than the sum of its proper divisors (1).

224140909 is an equidigital number, since it uses as much as digits as its factorization.

224140909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 224140909 is about 14971.3362463075. The cubic root of 224140909 is about 607.4451137280.

The spelling of 224140909 in words is "two hundred twenty-four million, one hundred forty thousand, nine hundred nine".