16216143 has 4 divisors (see below), whose sum is σ = 21621528. Its totient is φ = 10810760.

The previous prime is 16216141. The next prime is 16216163. The reversal of 16216143 is 34161261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34161261 = 3 ⋅11387087.

It is a cyclic number.

It is not a de Polignac number, because 16216143 - 2¹ = 16216141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16216141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2702688 + ... + 2702693.

It is an arithmetic number, because the mean of its divisors is an integer number (5405382).

Almost surely, 2^16216143 is an apocalyptic number.

16216143 is a deficient number, since it is larger than the sum of its proper divisors (5405385).

16216143 is an equidigital number, since it uses as much as digits as its factorization.

16216143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5405384.

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

The square root of 16216143 is about 4026.9272404651. The cubic root of 16216143 is about 253.1138181922.

The spelling of 16216143 in words is "sixteen million, two hundred sixteen thousand, one hundred forty-three".