212243160 has 64 divisors (see below), whose sum is σ = 637966080. Its totient is φ = 56488320.

The previous prime is 212243159. The next prime is 212243173. The reversal of 212243160 is 61342212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74319 + ... + 77121.

It is an arithmetic number, because the mean of its divisors is an integer number (9968220).

Almost surely, 2^212243160 is an apocalyptic number.

212243160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212243160 is an abundant number, since it is smaller than the sum of its proper divisors (425722920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212243160 is a wasteful number, since it uses less digits than its factorization.

212243160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3448 (or 3444 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 212243160 is about 14568.5675342499. The cubic root of 212243160 is about 596.5010800386.

Adding to 212243160 its reverse (61342212), we get a palindrome (273585372).

The spelling of 212243160 in words is "two hundred twelve million, two hundred forty-three thousand, one hundred sixty".