4251223 has 2 divisors, whose sum is σ = 4251224. Its totient is φ = 4251222.

The previous prime is 4251199. The next prime is 4251239. The reversal of 4251223 is 3221524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4251223 - 2⁹ = 4250711 is a prime.

4251223 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4251223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4251253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2125611 + 2125612.

It is an arithmetic number, because the mean of its divisors is an integer number (2125612).

Almost surely, 2^4251223 is an apocalyptic number.

4251223 is a deficient number, since it is larger than the sum of its proper divisors (1).

4251223 is an equidigital number, since it uses as much as digits as its factorization.

4251223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 480, while the sum is 19.

The square root of 4251223 is about 2061.8494125421. The cubic root of 4251223 is about 161.9961260060.

Adding to 4251223 its reverse (3221524), we get a palindrome (7472747).

The spelling of 4251223 in words is "four million, two hundred fifty-one thousand, two hundred twenty-three".