224997239 has 2 divisors, whose sum is σ = 224997240. Its totient is φ = 224997238.

The previous prime is 224997197. The next prime is 224997271. The reversal of 224997239 is 932799422.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 224997239 - 2⁸ = 224996983 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 224997193 and 224997202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224994239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112498619 + 112498620.

It is an arithmetic number, because the mean of its divisors is an integer number (112498620).

Almost surely, 2^224997239 is an apocalyptic number.

224997239 is a deficient number, since it is larger than the sum of its proper divisors (1).

224997239 is an equidigital number, since it uses as much as digits as its factorization.

224997239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 47.

The square root of 224997239 is about 14999.9079663843. The cubic root of 224997239 is about 608.2177117013.

The spelling of 224997239 in words is "two hundred twenty-four million, nine hundred ninety-seven thousand, two hundred thirty-nine".