243051393 has 8 divisors (see below), whose sum is σ = 348996928. Its totient is φ = 149570064.

The previous prime is 243051379. The next prime is 243051427. The reversal of 243051393 is 393150342.

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

It is not a de Polignac number, because 243051393 - 2¹⁰ = 243050369 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 243051393.

It is not an unprimeable number, because it can be changed into a prime (243051323) 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, 3116005 + ... + 3116082.

It is an arithmetic number, because the mean of its divisors is an integer number (43624616).

Almost surely, 2^243051393 is an apocalyptic number.

It is an amenable number.

243051393 is a deficient number, since it is larger than the sum of its proper divisors (105945535).

243051393 is a wasteful number, since it uses less digits than its factorization.

243051393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6232103.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 243051393 is about 15590.1056122144. The cubic root of 243051393 is about 624.0691363034.

The spelling of 243051393 in words is "two hundred forty-three million, fifty-one thousand, three hundred ninety-three".