16143216 has 20 divisors (see below), whose sum is σ = 41703432. Its totient is φ = 5381056.

The previous prime is 16143191. The next prime is 16143247. The reversal of 16143216 is 61234161.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168111 + ... + 168206.

Almost surely, 2^16143216 is an apocalyptic number.

16143216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16143216 is an abundant number, since it is smaller than the sum of its proper divisors (25560216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16143216 is a wasteful number, since it uses less digits than its factorization.

16143216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336328 (or 336322 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

The square root of 16143216 is about 4017.8621180922. The cubic root of 16143216 is about 252.7338147251.

Adding to 16143216 its reverse (61234161), we get a palindrome (77377377).

The spelling of 16143216 in words is "sixteen million, one hundred forty-three thousand, two hundred sixteen".