14228911 has 4 divisors (see below), whose sum is σ = 14242032. Its totient is φ = 14215792.

The previous prime is 14228887. The next prime is 14228917. The reversal of 14228911 is 11982241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11982241 = 23 ⋅520967.

It is a cyclic number.

It is not a de Polignac number, because 14228911 - 2¹³ = 14220719 is a prime.

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 14228911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14228917) 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, 4771 + ... + 7156.

It is an arithmetic number, because the mean of its divisors is an integer number (3560508).

Almost surely, 2^14228911 is an apocalyptic number.

14228911 is the 2386-th heptagonal number.

14228911 is a deficient number, since it is larger than the sum of its proper divisors (13121).

14228911 is a wasteful number, since it uses less digits than its factorization.

14228911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13120.

The product of its digits is 1152, while the sum is 28.

The square root of 14228911 is about 3772.1228771078. The cubic root of 14228911 is about 242.3207219951.

The spelling of 14228911 in words is "fourteen million, two hundred twenty-eight thousand, nine hundred eleven".