13226623 has 2 divisors, whose sum is σ = 13226624. Its totient is φ = 13226622.

The previous prime is 13226617. The next prime is 13226683. The reversal of 13226623 is 32662231.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13226623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13226683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6613311 + 6613312.

It is an arithmetic number, because the mean of its divisors is an integer number (6613312).

Almost surely, 2^13226623 is an apocalyptic number.

13226623 is a deficient number, since it is larger than the sum of its proper divisors (1).

13226623 is an equidigital number, since it uses as much as digits as its factorization.

13226623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 25.

The square root of 13226623 is about 3636.8424491583. The cubic root of 13226623 is about 236.4919296935.

Adding to 13226623 its reverse (32662231), we get a palindrome (45888854).

The spelling of 13226623 in words is "thirteen million, two hundred twenty-six thousand, six hundred twenty-three".