243124125 has 16 divisors (see below), whose sum is σ = 404559168. Its totient is φ = 129666000.

The previous prime is 243124121. The next prime is 243124153. The reversal of 243124125 is 521421342.

It is not a de Polignac number, because 243124125 - 2² = 243124121 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 243124095 and 243124104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243124121) by changing a digit.

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, 323791 + ... + 324540.

It is an arithmetic number, because the mean of its divisors is an integer number (25284948).

Almost surely, 2^243124125 is an apocalyptic number.

243124125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243124125 is a deficient number, since it is larger than the sum of its proper divisors (161435043).

243124125 is an equidigital number, since it uses as much as digits as its factorization.

243124125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648349 (or 648339 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 243124125 is about 15592.4380710651. The cubic root of 243124125 is about 624.1313800249.

Adding to 243124125 its reverse (521421342), we get a palindrome (764545467).

The spelling of 243124125 in words is "two hundred forty-three million, one hundred twenty-four thousand, one hundred twenty-five".