243552403 has 8 divisors (see below), whose sum is σ = 246064896. Its totient is φ = 241046400.

The previous prime is 243552401. The next prime is 243552427. The reversal of 243552403 is 304255342.

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

It is a cyclic number.

It is not a de Polignac number, because 243552403 - 2¹ = 243552401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243552401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114318 + ... + 116428.

It is an arithmetic number, because the mean of its divisors is an integer number (30758112).

Almost surely, 2^243552403 is an apocalyptic number.

243552403 is a deficient number, since it is larger than the sum of its proper divisors (2512493).

243552403 is a wasteful number, since it uses less digits than its factorization.

243552403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3245.

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 243552403 is about 15606.1655444251. The cubic root of 243552403 is about 624.4976468944.

The spelling of 243552403 in words is "two hundred forty-three million, five hundred fifty-two thousand, four hundred three".