212543485 has 32 divisors (see below), whose sum is σ = 319295232. Its totient is φ = 131950080.

The previous prime is 212543477. The next prime is 212543489. The reversal of 212543485 is 584345212.

It is not a de Polignac number, because 212543485 - 2³ = 212543477 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212543485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212543489) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105649 + ... + 107641.

It is an arithmetic number, because the mean of its divisors is an integer number (9977976).

Almost surely, 2^212543485 is an apocalyptic number.

It is an amenable number.

212543485 is a deficient number, since it is larger than the sum of its proper divisors (106751747).

212543485 is a wasteful number, since it uses less digits than its factorization.

212543485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2293.

The product of its digits is 38400, while the sum is 34.

The square root of 212543485 is about 14578.8711840115. The cubic root of 212543485 is about 596.7822979848.

Adding to 212543485 its reverse (584345212), we get a palindrome (796888697).

The spelling of 212543485 in words is "two hundred twelve million, five hundred forty-three thousand, four hundred eighty-five".