243086741 has 4 divisors (see below), whose sum is σ = 255880800. Its totient is φ = 230292684.

The previous prime is 243086687. The next prime is 243086759. The reversal of 243086741 is 147680342.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 243086741 - 2¹⁸ = 242824597 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 (243086761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6397001 + ... + 6397038.

It is an arithmetic number, because the mean of its divisors is an integer number (63970200).

Almost surely, 2^243086741 is an apocalyptic number.

It is an amenable number.

243086741 is a deficient number, since it is larger than the sum of its proper divisors (12794059).

243086741 is a wasteful number, since it uses less digits than its factorization.

243086741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12794058.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 243086741 is about 15591.2392387520. The cubic root of 243086741 is about 624.0993885150.

The spelling of 243086741 in words is "two hundred forty-three million, eighty-six thousand, seven hundred forty-one".