16227231 has 8 divisors (see below), whose sum is σ = 22909104. Its totient is φ = 10181760.

The previous prime is 16227217. The next prime is 16227241. The reversal of 16227231 is 13272261.

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

It is not a de Polignac number, because 16227231 - 2¹⁰ = 16226207 is a prime.

It is a super-2 number, since 2×16227231² = 526646051854722, which contains 22 as substring.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16227241) 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, 159040 + ... + 159141.

It is an arithmetic number, because the mean of its divisors is an integer number (2863638).

Almost surely, 2^16227231 is an apocalyptic number.

16227231 is a deficient number, since it is larger than the sum of its proper divisors (6681873).

16227231 is a wasteful number, since it uses less digits than its factorization.

16227231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318201.

The product of its digits is 1008, while the sum is 24.

The square root of 16227231 is about 4028.3037373068. The cubic root of 16227231 is about 253.1714950104.

Adding to 16227231 its reverse (13272261), we get a palindrome (29499492).

The spelling of 16227231 in words is "sixteen million, two hundred twenty-seven thousand, two hundred thirty-one".