243153212 has 12 divisors (see below), whose sum is σ = 439244736. Its totient is φ = 117654720.

The previous prime is 243153199. The next prime is 243153223. The reversal of 243153212 is 212351342.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 980333 + ... + 980580.

It is an arithmetic number, because the mean of its divisors is an integer number (36603728).

Almost surely, 2^243153212 is an apocalyptic number.

It is an amenable number.

243153212 is a deficient number, since it is larger than the sum of its proper divisors (196091524).

243153212 is a wasteful number, since it uses less digits than its factorization.

243153212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1960948 (or 1960946 counting only the distinct ones).

The product of its digits is 1440, while the sum is 23.

The square root of 243153212 is about 15593.3707709398. The cubic root of 243153212 is about 624.1562690749.

The spelling of 243153212 in words is "two hundred forty-three million, one hundred fifty-three thousand, two hundred twelve".