243603145 has 8 divisors (see below), whose sum is σ = 294626304. Its totient is φ = 193347504.

The previous prime is 243603109. The next prime is 243603163. The reversal of 243603145 is 541306342.

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 243603145 - 2¹¹ = 243601097 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191179 + ... + 192448.

It is an arithmetic number, because the mean of its divisors is an integer number (36828288).

Almost surely, 2^243603145 is an apocalyptic number.

It is an amenable number.

243603145 is a deficient number, since it is larger than the sum of its proper divisors (51023159).

243603145 is a wasteful number, since it uses less digits than its factorization.

243603145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383759.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 243603145 is about 15607.7911633902. The cubic root of 243603145 is about 624.5410134126.

Adding to 243603145 its reverse (541306342), we get a palindrome (784909487).

The spelling of 243603145 in words is "two hundred forty-three million, six hundred three thousand, one hundred forty-five".