13222859 has 8 divisors (see below), whose sum is σ = 14353920. Its totient is φ = 12108096.

The previous prime is 13222849. The next prime is 13222871. The reversal of 13222859 is 95822231.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13222859 - 2⁴ = 13222843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13222849) 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 7 ways as a sum of consecutive naturals, for example, 2354 + ... + 5655.

It is an arithmetic number, because the mean of its divisors is an integer number (1794240).

Almost surely, 2^13222859 is an apocalyptic number.

13222859 is a deficient number, since it is larger than the sum of its proper divisors (1131061).

13222859 is a wasteful number, since it uses less digits than its factorization.

13222859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8149.

The product of its digits is 8640, while the sum is 32.

The square root of 13222859 is about 3636.3249304758. The cubic root of 13222859 is about 236.4694941336.

The spelling of 13222859 in words is "thirteen million, two hundred twenty-two thousand, eight hundred fifty-nine".