13228089 has 36 divisors (see below), whose sum is σ = 21447504. Its totient is φ = 7230048.

The previous prime is 13228069. The next prime is 13228097. The reversal of 13228089 is 98082231.

13228089 is digitally balanced in base 2, base 4 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13228089 - 2¹¹ = 13226041 is a prime.

13228089 is strictly pandigital in base 8.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13228049) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 123574 + ... + 123680.

It is an arithmetic number, because the mean of its divisors is an integer number (595764).

Almost surely, 2^13228089 is an apocalyptic number.

It is an amenable number.

13228089 is a deficient number, since it is larger than the sum of its proper divisors (8219415).

13228089 is a wasteful number, since it uses less digits than its factorization.

13228089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 13228089 is about 3637.0439920353. The cubic root of 13228089 is about 236.5006667274.

The spelling of 13228089 in words is "thirteen million, two hundred twenty-eight thousand, eighty-nine".