243324545 has 32 divisors (see below), whose sum is σ = 317520000. Its totient is φ = 178398720.

The previous prime is 243324539. The next prime is 243324551. The reversal of 243324545 is 545423342.

It is an interprime number because it is at equal distance from previous prime (243324539) and next prime (243324551).

It is not a de Polignac number, because 243324545 - 2¹² = 243320449 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 697031 + ... + 697379.

It is an arithmetic number, because the mean of its divisors is an integer number (9922500).

Almost surely, 2^243324545 is an apocalyptic number.

It is an amenable number.

243324545 is a deficient number, since it is larger than the sum of its proper divisors (74195455).

243324545 is a wasteful number, since it uses less digits than its factorization.

243324545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593.

The product of its digits is 57600, while the sum is 32.

The square root of 243324545 is about 15598.8635804023. The cubic root of 243324545 is about 624.3028343586.

Adding to 243324545 its reverse (545423342), we get a palindrome (788747887).

The spelling of 243324545 in words is "two hundred forty-three million, three hundred twenty-four thousand, five hundred forty-five".