243145323 has 6 divisors (see below), whose sum is σ = 351209924. Its totient is φ = 162096876.

The previous prime is 243145321. The next prime is 243145391. The reversal of 243145323 is 323541342.

243145323 is a `hidden beast` number, since 24 + 314 + 5 + 323 = 666.

It is not a de Polignac number, because 243145323 - 2¹ = 243145321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243145321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13508065 + ... + 13508082.

Almost surely, 2^243145323 is an apocalyptic number.

243145323 is a deficient number, since it is larger than the sum of its proper divisors (108064601).

243145323 is a wasteful number, since it uses less digits than its factorization.

243145323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27016153 (or 27016150 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 243145323 is about 15593.1178088284. The cubic root of 243145323 is about 624.1495188425.

Adding to 243145323 its reverse (323541342), we get a palindrome (566686665).

The spelling of 243145323 in words is "two hundred forty-three million, one hundred forty-five thousand, three hundred twenty-three".