243343142 has 8 divisors (see below), whose sum is σ = 417159696. Its totient is φ = 104289912.

The previous prime is 243343141. The next prime is 243343157. The reversal of 243343142 is 241343342.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243343141) 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 3 ways as a sum of consecutive naturals, for example, 8690813 + ... + 8690840.

It is an arithmetic number, because the mean of its divisors is an integer number (52144962).

Almost surely, 2^243343142 is an apocalyptic number.

243343142 is a deficient number, since it is larger than the sum of its proper divisors (173816554).

243343142 is a wasteful number, since it uses less digits than its factorization.

243343142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17381662.

The product of its digits is 6912, while the sum is 26.

The square root of 243343142 is about 15599.4596701296. The cubic root of 243343142 is about 624.3187388564.

Adding to 243343142 its reverse (241343342), we get a palindrome (484686484).

The spelling of 243343142 in words is "two hundred forty-three million, three hundred forty-three thousand, one hundred forty-two".