243113434 has 4 divisors (see below), whose sum is σ = 364670154. Its totient is φ = 121556716.

The previous prime is 243113419. The next prime is 243113441. The reversal of 243113434 is 434311342.

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

It can be written as a sum of positive squares in only one way, i.e., 241709209 + 1404225 = 15547^2 + 1185^2 .

It is a junction number, because it is equal to n+sod(n) for n = 243113399 and 243113408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60778357 + ... + 60778360.

Almost surely, 2^243113434 is an apocalyptic number.

243113434 is a deficient number, since it is larger than the sum of its proper divisors (121556720).

243113434 is a wasteful number, since it uses less digits than its factorization.

243113434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121556719.

The product of its digits is 3456, while the sum is 25.

The square root of 243113434 is about 15592.0952408584. The cubic root of 243113434 is about 624.1222314930.

Adding to 243113434 its reverse (434311342), we get a palindrome (677424776).

The spelling of 243113434 in words is "two hundred forty-three million, one hundred thirteen thousand, four hundred thirty-four".