13226709 has 4 divisors (see below), whose sum is σ = 17635616. Its totient is φ = 8817804.

The previous prime is 13226683. The next prime is 13226713. The reversal of 13226709 is 90762231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 13226709 - 2⁹ = 13226197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13226729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2204449 + ... + 2204454.

It is an arithmetic number, because the mean of its divisors is an integer number (4408904).

Almost surely, 2^13226709 is an apocalyptic number.

It is an amenable number.

13226709 is a deficient number, since it is larger than the sum of its proper divisors (4408907).

13226709 is an equidigital number, since it uses as much as digits as its factorization.

13226709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4408906.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 13226709 is about 3636.8542725823. The cubic root of 13226709 is about 236.4924422522.

The spelling of 13226709 in words is "thirteen million, two hundred twenty-six thousand, seven hundred nine".