224239289 has 2 divisors, whose sum is σ = 224239290. Its totient is φ = 224239288.

The previous prime is 224239261. The next prime is 224239361. The reversal of 224239289 is 982932422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204061225 + 20178064 = 14285^2 + 4492^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-224239289 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (224239219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112119644 + 112119645.

It is an arithmetic number, because the mean of its divisors is an integer number (112119645).

Almost surely, 2^224239289 is an apocalyptic number.

It is an amenable number.

224239289 is a deficient number, since it is larger than the sum of its proper divisors (1).

224239289 is an equidigital number, since it uses as much as digits as its factorization.

224239289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 41.

The square root of 224239289 is about 14974.6214977207. The cubic root of 224239289 is about 607.5339740635.

The spelling of 224239289 in words is "two hundred twenty-four million, two hundred thirty-nine thousand, two hundred eighty-nine".