243154560425 has 12 divisors (see below), whose sum is σ = 344584748736. Its totient is φ = 166734555600.

The previous prime is 243154560401. The next prime is 243154560487. The reversal of 243154560425 is 524065451342.

It is not a de Polignac number, because 243154560425 - 2²⁰ = 243153511849 is a prime.

It is a Duffinian number.

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 11 ways as a sum of consecutive naturals, for example, 694727141 + ... + 694727490.

It is an arithmetic number, because the mean of its divisors is an integer number (28715395728).

Almost surely, 2^243154560425 is an apocalyptic number.

243154560425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243154560425 is a deficient number, since it is larger than the sum of its proper divisors (101430188311).

243154560425 is a wasteful number, since it uses less digits than its factorization.

243154560425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389454648 (or 1389454643 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 41.

The spelling of 243154560425 in words is "two hundred forty-three billion, one hundred fifty-four million, five hundred sixty thousand, four hundred twenty-five".