243351000225 has 36 divisors (see below), whose sum is σ = 435909947200. Its totient is φ = 129774912480.

The previous prime is 243351000203. The next prime is 243351000253. The reversal of 243351000225 is 522000153342.

It is a happy number.

243351000225 is a `hidden beast` number, since 2 + 4 + 335 + 100 + 0 + 225 = 666.

It is not a de Polignac number, because 243351000225 - 2⁷ = 243351000097 is a prime.

It is a Curzon 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 35 ways as a sum of consecutive naturals, for example, 2645556 + ... + 2735994.

Almost surely, 2^243351000225 is an apocalyptic number.

243351000225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243351000225 is a deficient number, since it is larger than the sum of its proper divisors (192558946975).

243351000225 is a wasteful number, since it uses less digits than its factorization.

243351000225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102414 (or 102406 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 243351000225 its reverse (522000153342), we get a palindrome (765351153567).

The spelling of 243351000225 in words is "two hundred forty-three billion, three hundred fifty-one million, two hundred twenty-five", and thus it is an aban number.