13228653 has 4 divisors (see below), whose sum is σ = 17638208. Its totient is φ = 8819100.

The previous prime is 13228651. The next prime is 13228673. The reversal of 13228653 is 35682231.

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 13228653 - 2¹ = 13228651 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13228653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13228651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2204773 + ... + 2204778.

It is an arithmetic number, because the mean of its divisors is an integer number (4409552).

Almost surely, 2^13228653 is an apocalyptic number.

It is an amenable number.

13228653 is a deficient number, since it is larger than the sum of its proper divisors (4409555).

13228653 is an equidigital number, since it uses as much as digits as its factorization.

13228653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4409554.

The product of its digits is 8640, while the sum is 30.

The square root of 13228653 is about 3637.1215267021. The cubic root of 13228653 is about 236.5040278700.

The spelling of 13228653 in words is "thirteen million, two hundred twenty-eight thousand, six hundred fifty-three".