243135210 has 32 divisors (see below), whose sum is σ = 614237760. Its totient is φ = 61423488.

The previous prime is 243135199. The next prime is 243135223. The reversal of 243135210 is 12531342.

It is a super-2 number, since 2×243135210² = 118229460683488200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212707 + ... + 213846.

It is an arithmetic number, because the mean of its divisors is an integer number (19194930).

Almost surely, 2^243135210 is an apocalyptic number.

243135210 is an abundant number, since it is smaller than the sum of its proper divisors (371102550).

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

243135210 is a wasteful number, since it uses less digits than its factorization.

243135210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426582.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 243135210 is about 15592.7935277807. The cubic root of 243135210 is about 624.1408654283.

Adding to 243135210 its reverse (12531342), we get a palindrome (255666552).

The spelling of 243135210 in words is "two hundred forty-three million, one hundred thirty-five thousand, two hundred ten".