13228855 has 16 divisors (see below), whose sum is σ = 16619904. Its totient is φ = 10097920.

The previous prime is 13228837. The next prime is 13228861. The reversal of 13228855 is 55882231.

It is not a de Polignac number, because 13228855 - 2⁵ = 13228823 is a prime.

It is a super-2 number, since 2×13228855² = 350005209222050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13228855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8949 + ... + 10321.

It is an arithmetic number, because the mean of its divisors is an integer number (1038744).

Almost surely, 2^13228855 is an apocalyptic number.

13228855 is a deficient number, since it is larger than the sum of its proper divisors (3391049).

13228855 is a wasteful number, since it uses less digits than its factorization.

13228855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466.

The product of its digits is 19200, while the sum is 34.

The square root of 13228855 is about 3637.1492958085. The cubic root of 13228855 is about 236.5052316602.

The spelling of 13228855 in words is "thirteen million, two hundred twenty-eight thousand, eight hundred fifty-five".