243732760345 has 8 divisors (see below), whose sum is σ = 292953350664. Its totient is φ = 194670182784.

The previous prime is 243732760343. The next prime is 243732760357. The reversal of 243732760345 is 543067237342.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8434034569 + 235298725776 = 91837^2 + 485076^2 .

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 243732760345 - 2¹ = 243732760343 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243732760295 and 243732760304.

It is not an unprimeable number, because it can be changed into a prime (243732760343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39499794 + ... + 39505963.

It is an arithmetic number, because the mean of its divisors is an integer number (36619168833).

Almost surely, 2^243732760345 is an apocalyptic number.

It is an amenable number.

243732760345 is a deficient number, since it is larger than the sum of its proper divisors (49220590319).

243732760345 is an equidigital number, since it uses as much as digits as its factorization.

243732760345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79006379.

The product of its (nonzero) digits is 2540160, while the sum is 46.

Adding to 243732760345 its reverse (543067237342), we get a palindrome (786799997687).

The spelling of 243732760345 in words is "two hundred forty-three billion, seven hundred thirty-two million, seven hundred sixty thousand, three hundred forty-five".