4138223 has 2 divisors, whose sum is σ = 4138224. Its totient is φ = 4138222.

The previous prime is 4138217. The next prime is 4138241. The reversal of 4138223 is 3228314.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4138223 - 2¹⁴ = 4121839 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 (4138243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2069111 + 2069112.

It is an arithmetic number, because the mean of its divisors is an integer number (2069112).

Almost surely, 2^4138223 is an apocalyptic number.

4138223 is a deficient number, since it is larger than the sum of its proper divisors (1).

4138223 is an equidigital number, since it uses as much as digits as its factorization.

4138223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 23.

The square root of 4138223 is about 2034.2622741426. The cubic root of 4138223 is about 160.5479002872.

Subtracting from 4138223 its reverse (3228314), we obtain a palindrome (909909).

The spelling of 4138223 in words is "four million, one hundred thirty-eight thousand, two hundred twenty-three".