13288213 has 4 divisors (see below), whose sum is σ = 13538988. Its totient is φ = 13037440.

The previous prime is 13288211. The next prime is 13288259. The reversal of 13288213 is 31288231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6770404 + 6517809 = 2602^2 + 2553^2 .

It is a cyclic number.

It is not a de Polignac number, because 13288213 - 2¹ = 13288211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13288211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125308 + ... + 125413.

It is an arithmetic number, because the mean of its divisors is an integer number (3384747).

Almost surely, 2^13288213 is an apocalyptic number.

It is an amenable number.

13288213 is a deficient number, since it is larger than the sum of its proper divisors (250775).

13288213 is an equidigital number, since it uses as much as digits as its factorization.

13288213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250774.

The product of its digits is 2304, while the sum is 28.

The square root of 13288213 is about 3645.3001248183. The cubic root of 13288213 is about 236.8584376582.

The spelling of 13288213 in words is "thirteen million, two hundred eighty-eight thousand, two hundred thirteen".