212424543 has 6 divisors (see below), whose sum is σ = 306835464. Its totient is φ = 141616356.

The previous prime is 212424539. The next prime is 212424551. The reversal of 212424543 is 345424212.

It is not a de Polignac number, because 212424543 - 2² = 212424539 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212424593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11801355 + ... + 11801372.

It is an arithmetic number, because the mean of its divisors is an integer number (51139244).

Almost surely, 2^212424543 is an apocalyptic number.

212424543 is a deficient number, since it is larger than the sum of its proper divisors (94410921).

212424543 is a wasteful number, since it uses less digits than its factorization.

212424543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23602733 (or 23602730 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 212424543 is about 14574.7913535666. The cubic root of 212424543 is about 596.6709549262.

Adding to 212424543 its reverse (345424212), we get a palindrome (557848755).

The spelling of 212424543 in words is "two hundred twelve million, four hundred twenty-four thousand, five hundred forty-three".