243741345 has 8 divisors (see below), whose sum is σ = 389986176. Its totient is φ = 129995376.

The previous prime is 243741341. The next prime is 243741349. The reversal of 243741345 is 543147342.

It is an interprime number because it is at equal distance from previous prime (243741341) and next prime (243741349).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 243741345 - 2² = 243741341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243741341) by changing a digit.

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, 8124697 + ... + 8124726.

It is an arithmetic number, because the mean of its divisors is an integer number (48748272).

Almost surely, 2^243741345 is an apocalyptic number.

It is an amenable number.

243741345 is a deficient number, since it is larger than the sum of its proper divisors (146244831).

243741345 is a wasteful number, since it uses less digits than its factorization.

243741345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16249431.

The product of its digits is 40320, while the sum is 33.

The square root of 243741345 is about 15612.2178117012. The cubic root of 243741345 is about 624.6590951547.

Adding to 243741345 its reverse (543147342), we get a palindrome (786888687).

The spelling of 243741345 in words is "two hundred forty-three million, seven hundred forty-one thousand, three hundred forty-five".