243314643 has 32 divisors (see below), whose sum is σ = 387636480. Its totient is φ = 133799040.

The previous prime is 243314581. The next prime is 243314671. The reversal of 243314643 is 346413342.

It is not a de Polignac number, because 243314643 - 2⁶ = 243314579 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 243314643.

It is not an unprimeable number, because it can be changed into a prime (243314143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20505 + ... + 30117.

It is an arithmetic number, because the mean of its divisors is an integer number (12113640).

Almost surely, 2^243314643 is an apocalyptic number.

243314643 is a deficient number, since it is larger than the sum of its proper divisors (144321837).

243314643 is a wasteful number, since it uses less digits than its factorization.

243314643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9699.

The product of its digits is 20736, while the sum is 30.

The square root of 243314643 is about 15598.5461822569. The cubic root of 243314643 is about 624.2943656548.

Adding to 243314643 its reverse (346413342), we get a palindrome (589727985).

The spelling of 243314643 in words is "two hundred forty-three million, three hundred fourteen thousand, six hundred forty-three".