212143304 has 16 divisors (see below), whose sum is σ = 399524400. Its totient is φ = 105603472.

The previous prime is 212143301. The next prime is 212143319. The reversal of 212143304 is 403341212.

It is not an unprimeable number, because it can be changed into a prime (212143301) 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 3 ways as a sum of consecutive naturals, for example, 56594 + ... + 60225.

It is an arithmetic number, because the mean of its divisors is an integer number (24970275).

Almost surely, 2^212143304 is an apocalyptic number.

It is an amenable number.

212143304 is a deficient number, since it is larger than the sum of its proper divisors (187381096).

212143304 is a wasteful number, since it uses less digits than its factorization.

212143304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117052 (or 117048 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 212143304 is about 14565.1400267900. The cubic root of 212143304 is about 596.4075182398.

Adding to 212143304 its reverse (403341212), we get a palindrome (615484516).

The spelling of 212143304 in words is "two hundred twelve million, one hundred forty-three thousand, three hundred four".