12736223 has 2 divisors, whose sum is σ = 12736224. Its totient is φ = 12736222.

The previous prime is 12736189. The next prime is 12736253. The reversal of 12736223 is 32263721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12736223 - 2⁶ = 12736159 is a prime.

It is a super-2 number, since 2×12736223² = 324422752611458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12736192 and 12736201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12736253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6368111 + 6368112.

It is an arithmetic number, because the mean of its divisors is an integer number (6368112).

Almost surely, 2^12736223 is an apocalyptic number.

12736223 is a deficient number, since it is larger than the sum of its proper divisors (1).

12736223 is an equidigital number, since it uses as much as digits as its factorization.

12736223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 26.

The square root of 12736223 is about 3568.7845269783. The cubic root of 12736223 is about 233.5322614216.

Adding to 12736223 its reverse (32263721), we get a palindrome (44999944).

The spelling of 12736223 in words is "twelve million, seven hundred thirty-six thousand, two hundred twenty-three".