243146636 has 12 divisors (see below), whose sum is σ = 426960912. Its totient is φ = 121157808.

The previous prime is 243146633. The next prime is 243146677. The reversal of 243146636 is 636641342.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 243146596 and 243146605.

It is not an unprimeable number, because it can be changed into a prime (243146633) by changing a digit.

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, 102560 + ... + 104903.

It is an arithmetic number, because the mean of its divisors is an integer number (35580076).

Almost surely, 2^243146636 is an apocalyptic number.

It is an amenable number.

243146636 is a deficient number, since it is larger than the sum of its proper divisors (183814276).

243146636 is a wasteful number, since it uses less digits than its factorization.

243146636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207760 (or 207758 counting only the distinct ones).

The product of its digits is 62208, while the sum is 35.

The square root of 243146636 is about 15593.1599106788. The cubic root of 243146636 is about 624.1506423227.

Adding to 243146636 its reverse (636641342), we get a palindrome (879787978).

The spelling of 243146636 in words is "two hundred forty-three million, one hundred forty-six thousand, six hundred thirty-six".