126204223 has 2 divisors, whose sum is σ = 126204224. Its totient is φ = 126204222.

The previous prime is 126204187. The next prime is 126204271. The reversal of 126204223 is 322402621.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126204223 is a prime.

It is a super-3 number, since 3×126204223³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 126204194 and 126204203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126204623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63102111 + 63102112.

It is an arithmetic number, because the mean of its divisors is an integer number (63102112).

Almost surely, 2^126204223 is an apocalyptic number.

126204223 is a deficient number, since it is larger than the sum of its proper divisors (1).

126204223 is an equidigital number, since it uses as much as digits as its factorization.

126204223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 126204223 is about 11234.0652926712. The cubic root of 126204223 is about 501.6005019870.

Adding to 126204223 its reverse (322402621), we get a palindrome (448606844).

The spelling of 126204223 in words is "one hundred twenty-six million, two hundred four thousand, two hundred twenty-three".