243204325 has 24 divisors (see below), whose sum is σ = 371170688. Its totient is φ = 153938880.

The previous prime is 243204301. The next prime is 243204341. The reversal of 243204325 is 523402342.

It is not a de Polignac number, because 243204325 - 2¹¹ = 243202277 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 243204325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51177 + ... + 55726.

Almost surely, 2^243204325 is an apocalyptic number.

243204325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243204325 is a deficient number, since it is larger than the sum of its proper divisors (127966363).

243204325 is a wasteful number, since it uses less digits than its factorization.

243204325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106933 (or 106928 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 243204325 is about 15595.0096184645. The cubic root of 243204325 is about 624.2000004380.

Adding to 243204325 its reverse (523402342), we get a palindrome (766606667).

The spelling of 243204325 in words is "two hundred forty-three million, two hundred four thousand, three hundred twenty-five".