243506343 has 8 divisors (see below), whose sum is σ = 324777856. Its totient is φ = 162286200.

The previous prime is 243506321. The next prime is 243506369. The reversal of 243506343 is 343605342.

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

It is not a de Polignac number, because 243506343 - 2⁵ = 243506311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 243506343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243506303) 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, 78 + ... + 22068.

It is an arithmetic number, because the mean of its divisors is an integer number (40597232).

Almost surely, 2^243506343 is an apocalyptic number.

243506343 is a deficient number, since it is larger than the sum of its proper divisors (81271513).

243506343 is a wasteful number, since it uses less digits than its factorization.

243506343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25685.

The product of its (nonzero) digits is 25920, while the sum is 30.

The square root of 243506343 is about 15604.6897758334. The cubic root of 243506343 is about 624.4582766196.

The spelling of 243506343 in words is "two hundred forty-three million, five hundred six thousand, three hundred forty-three".