243043145 has 8 divisors (see below), whose sum is σ = 292279104. Its totient is φ = 194016304.

The previous prime is 243043133. The next prime is 243043183. The reversal of 243043145 is 541340342.

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 243043145 - 2⁶ = 243043081 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49709 + ... + 54378.

It is an arithmetic number, because the mean of its divisors is an integer number (36534888).

Almost surely, 2^243043145 is an apocalyptic number.

It is an amenable number.

243043145 is a deficient number, since it is larger than the sum of its proper divisors (49235959).

243043145 is a wasteful number, since it uses less digits than its factorization.

243043145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104559.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 243043145 is about 15589.8410832183. The cubic root of 243043145 is about 624.0620769179.

Adding to 243043145 its reverse (541340342), we get a palindrome (784383487).

The spelling of 243043145 in words is "two hundred forty-three million, forty-three thousand, one hundred forty-five".