13228251 has 8 divisors (see below), whose sum is σ = 17656320. Its totient is φ = 8809512.

The previous prime is 13228247. The next prime is 13228283. The reversal of 13228251 is 15282231.

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

It is not a de Polignac number, because 13228251 - 2² = 13228247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13228211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2286 + ... + 5628.

It is an arithmetic number, because the mean of its divisors is an integer number (2207040).

Almost surely, 2^13228251 is an apocalyptic number.

13228251 is a deficient number, since it is larger than the sum of its proper divisors (4428069).

13228251 is a wasteful number, since it uses less digits than its factorization.

13228251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4665.

The product of its digits is 960, while the sum is 24.

The square root of 13228251 is about 3637.0662628003. The cubic root of 13228251 is about 236.5016321717.

The spelling of 13228251 in words is "thirteen million, two hundred twenty-eight thousand, two hundred fifty-one".