16281227 has 8 divisors (see below), whose sum is σ = 16718400. Its totient is φ = 15849544.

The previous prime is 16281191. The next prime is 16281247. The reversal of 16281227 is 72218261.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16281227 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 16281227.

It is not an unprimeable number, because it can be changed into a prime (16281247) 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, 5024 + ... + 7602.

It is an arithmetic number, because the mean of its divisors is an integer number (2089800).

Almost surely, 2^16281227 is an apocalyptic number.

16281227 is a deficient number, since it is larger than the sum of its proper divisors (437173).

16281227 is a wasteful number, since it uses less digits than its factorization.

16281227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2745.

The product of its digits is 2688, while the sum is 29.

The square root of 16281227 is about 4035.0002478315. Note that the first 3 decimals coincide. The cubic root of 16281227 is about 253.4519929269.

Adding to 16281227 its reverse (72218261), we get a palindrome (88499488).

The spelling of 16281227 in words is "sixteen million, two hundred eighty-one thousand, two hundred twenty-seven".