243345230525 has 48 divisors (see below), whose sum is σ = 327466540800. Its totient is φ = 178659686400.

The previous prime is 243345230507. The next prime is 243345230533. The reversal of 243345230525 is 525032543342.

It is not a de Polignac number, because 243345230525 - 2⁶ = 243345230461 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 59364926 + ... + 59369024.

It is an arithmetic number, because the mean of its divisors is an integer number (6822219600).

Almost surely, 2^243345230525 is an apocalyptic number.

243345230525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243345230525 is a deficient number, since it is larger than the sum of its proper divisors (84121310275).

243345230525 is a wasteful number, since it uses less digits than its factorization.

243345230525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7574 (or 7569 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 38.

Adding to 243345230525 its reverse (525032543342), we get a palindrome (768377773867).

The spelling of 243345230525 in words is "two hundred forty-three billion, three hundred forty-five million, two hundred thirty thousand, five hundred twenty-five".