243359493 has 16 divisors (see below), whose sum is σ = 351516480. Its totient is φ = 149755632.

The previous prime is 243359461. The next prime is 243359497. The reversal of 243359493 is 394953342.

It is not a de Polignac number, because 243359493 - 2⁵ = 243359461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243359497) 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 15 ways as a sum of consecutive naturals, for example, 11871 + ... + 25052.

It is an arithmetic number, because the mean of its divisors is an integer number (21969780).

Almost surely, 2^243359493 is an apocalyptic number.

It is an amenable number.

243359493 is a deficient number, since it is larger than the sum of its proper divisors (108156987).

243359493 is an equidigital number, since it uses as much as digits as its factorization.

243359493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36965 (or 36939 counting only the distinct ones).

The product of its digits is 349920, while the sum is 42.

The square root of 243359493 is about 15599.9837499915. The cubic root of 243359493 is about 624.3327218640.

The spelling of 243359493 in words is "two hundred forty-three million, three hundred fifty-nine thousand, four hundred ninety-three".