212443143 has 8 divisors (see below), whose sum is σ = 309008256. Its totient is φ = 128753400.

The previous prime is 212443141. The next prime is 212443151. The reversal of 212443143 is 341344212.

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

It is not a de Polignac number, because 212443143 - 2¹ = 212443141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212443141) 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 7 ways as a sum of consecutive naturals, for example, 3218803 + ... + 3218868.

It is an arithmetic number, because the mean of its divisors is an integer number (38626032).

Almost surely, 2^212443143 is an apocalyptic number.

212443143 is a deficient number, since it is larger than the sum of its proper divisors (96565113).

212443143 is a wasteful number, since it uses less digits than its factorization.

212443143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6437685.

The product of its digits is 2304, while the sum is 24.

The square root of 212443143 is about 14575.4294276361. The cubic root of 212443143 is about 596.6883693544.

Adding to 212443143 its reverse (341344212), we get a palindrome (553787355).

The spelling of 212443143 in words is "two hundred twelve million, four hundred forty-three thousand, one hundred forty-three".