243372743 has 4 divisors (see below), whose sum is σ = 247005240. Its totient is φ = 239740248.

The previous prime is 243372719. The next prime is 243372757. The reversal of 243372743 is 347273342.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 243372743 - 2⁸ = 243372487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243372763) 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 3 ways as a sum of consecutive naturals, for example, 1816148 + ... + 1816281.

It is an arithmetic number, because the mean of its divisors is an integer number (61751310).

Almost surely, 2^243372743 is an apocalyptic number.

243372743 is a deficient number, since it is larger than the sum of its proper divisors (3632497).

243372743 is an equidigital number, since it uses as much as digits as its factorization.

243372743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3632496.

The product of its digits is 84672, while the sum is 35.

The square root of 243372743 is about 15600.4084241407. The cubic root of 243372743 is about 624.3440525068.

The spelling of 243372743 in words is "two hundred forty-three million, three hundred seventy-two thousand, seven hundred forty-three".