216236143 has 8 divisors (see below), whose sum is σ = 221042880. Its totient is φ = 211438080.

The previous prime is 216236113. The next prime is 216236149. The reversal of 216236143 is 341632612.

216236143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-216236143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216236149) 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, 98983 + ... + 101143.

It is an arithmetic number, because the mean of its divisors is an integer number (27630360).

Almost surely, 2^216236143 is an apocalyptic number.

216236143 is a deficient number, since it is larger than the sum of its proper divisors (4806737).

216236143 is a wasteful number, since it uses less digits than its factorization.

216236143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4337.

The product of its digits is 5184, while the sum is 28.

The square root of 216236143 is about 14704.9700101700. The cubic root of 216236143 is about 600.2185712939.

Adding to 216236143 its reverse (341632612), we get a palindrome (557868755).

The spelling of 216236143 in words is "two hundred sixteen million, two hundred thirty-six thousand, one hundred forty-three".