243004325 has 12 divisors (see below), whose sum is σ = 301664100. Its totient is φ = 194184960.

The previous prime is 243004313. The next prime is 243004327. The reversal of 243004325 is 523400342.

It can be written as a sum of positive squares in 6 ways, for example, as 1170724 + 241833601 = 1082^2 + 15551^2 .

It is a de Polignac number, because none of the positive numbers 2^k-243004325 is a prime.

It is a super-2 number, since 2×243004325² = 118102203937411250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 243004325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243004327) 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 11 ways as a sum of consecutive naturals, for example, 19451 + ... + 29399.

It is an arithmetic number, because the mean of its divisors is an integer number (25138675).

Almost surely, 2^243004325 is an apocalyptic number.

243004325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243004325 is a deficient number, since it is larger than the sum of its proper divisors (58659775).

243004325 is an equidigital number, since it uses as much as digits as its factorization.

243004325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10936 (or 10931 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 243004325 is about 15588.5959919423. The cubic root of 243004325 is about 624.0288491004.

Adding to 243004325 its reverse (523400342), we get a palindrome (766404667).

The spelling of 243004325 in words is "two hundred forty-three million, four thousand, three hundred twenty-five".