243342760225 has 12 divisors (see below), whose sum is σ = 301751155440. Its totient is φ = 194670251600.

The previous prime is 243342760189. The next prime is 243342760231. The reversal of 243342760225 is 522067243342.

It is a happy number.

It is not a de Polignac number, because 243342760225 - 2²⁷ = 243208542497 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2242266 + ... + 2348284.

It is an arithmetic number, because the mean of its divisors is an integer number (25145929620).

Almost surely, 2^243342760225 is an apocalyptic number.

243342760225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243342760225 is a deficient number, since it is larger than the sum of its proper divisors (58408395215).

243342760225 is a wasteful number, since it uses less digits than its factorization.

243342760225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197840 (or 197835 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 40.

The spelling of 243342760225 in words is "two hundred forty-three billion, three hundred forty-two million, seven hundred sixty thousand, two hundred twenty-five".