224138423 has 2 divisors, whose sum is σ = 224138424. Its totient is φ = 224138422.

The previous prime is 224138417. The next prime is 224138437. The reversal of 224138423 is 324831422.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 224138423 - 2⁴ = 224138407 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224138413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112069211 + 112069212.

It is an arithmetic number, because the mean of its divisors is an integer number (112069212).

Almost surely, 2^224138423 is an apocalyptic number.

224138423 is a deficient number, since it is larger than the sum of its proper divisors (1).

224138423 is an equidigital number, since it uses as much as digits as its factorization.

224138423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9216, while the sum is 29.

The square root of 224138423 is about 14971.2532207561. The cubic root of 224138423 is about 607.4428679471.

Adding to 224138423 its reverse (324831422), we get a palindrome (548969845).

The spelling of 224138423 in words is "two hundred twenty-four million, one hundred thirty-eight thousand, four hundred twenty-three".