216023143 has 16 divisors (see below), whose sum is σ = 253465920. Its totient is φ = 180288000.

The previous prime is 216023123. The next prime is 216023147. The reversal of 216023143 is 341320612.

It is a cyclic number.

It is not a de Polignac number, because 216023143 - 2¹⁷ = 215892071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216023147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40623 + ... + 45631.

It is an arithmetic number, because the mean of its divisors is an integer number (15841620).

Almost surely, 2^216023143 is an apocalyptic number.

216023143 is a deficient number, since it is larger than the sum of its proper divisors (37442777).

216023143 is a wasteful number, since it uses less digits than its factorization.

216023143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5178.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 216023143 is about 14697.7257764594. The cubic root of 216023143 is about 600.0214279384.

Adding to 216023143 its reverse (341320612), we get a palindrome (557343755).

The spelling of 216023143 in words is "two hundred sixteen million, twenty-three thousand, one hundred forty-three".