243113143 has 8 divisors (see below), whose sum is σ = 299216288. Its totient is φ = 192353184.

The previous prime is 243113077. The next prime is 243113153. The reversal of 243113143 is 341311342.

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

It is a cyclic number.

It is not a de Polignac number, because 243113143 - 2²¹ = 241015991 is a prime.

It is a super-3 number, since 3×243113143³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243113153) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 1335696 + ... + 1335877.

It is an arithmetic number, because the mean of its divisors is an integer number (37402036).

Almost surely, 2^243113143 is an apocalyptic number.

243113143 is a deficient number, since it is larger than the sum of its proper divisors (56103145).

243113143 is a wasteful number, since it uses less digits than its factorization.

243113143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2671593.

The product of its digits is 864, while the sum is 22.

The square root of 243113143 is about 15592.0859092041. The cubic root of 243113143 is about 624.1219824740.

Adding to 243113143 its reverse (341311342), we get a palindrome (584424485).

The spelling of 243113143 in words is "two hundred forty-three million, one hundred thirteen thousand, one hundred forty-three".