243552241 has 8 divisors (see below), whose sum is σ = 263300480. Its totient is φ = 224497008.

The previous prime is 243552229. The next prime is 243552247. The reversal of 243552241 is 142255342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 243552241 - 2¹⁷ = 243421169 is a prime.

It is a super-2 number, since 2×243552241² = 118635388192244162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (243552247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172521 + ... + 173926.

It is an arithmetic number, because the mean of its divisors is an integer number (32912560).

Almost surely, 2^243552241 is an apocalyptic number.

It is an amenable number.

243552241 is a deficient number, since it is larger than the sum of its proper divisors (19748239).

243552241 is a wasteful number, since it uses less digits than its factorization.

243552241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346503.

The product of its digits is 9600, while the sum is 28.

The square root of 243552241 is about 15606.1603541678. The cubic root of 243552241 is about 624.4975084318.

The spelling of 243552241 in words is "two hundred forty-three million, five hundred fifty-two thousand, two hundred forty-one".