243202143 has 8 divisors (see below), whose sum is σ = 324366256. Its totient is φ = 162086400.

The previous prime is 243202139. The next prime is 243202151. The reversal of 243202143 is 341202342.

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

It is not a de Polignac number, because 243202143 - 2² = 243202139 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 (243202163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1983 + ... + 22143.

It is an arithmetic number, because the mean of its divisors is an integer number (40545782).

Almost surely, 2^243202143 is an apocalyptic number.

243202143 is a deficient number, since it is larger than the sum of its proper divisors (81164113).

243202143 is a wasteful number, since it uses less digits than its factorization.

243202143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24185.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 243202143 is about 15594.9396600307. The cubic root of 243202143 is about 624.1981336833.

Adding to 243202143 its reverse (341202342), we get a palindrome (584404485).

The spelling of 243202143 in words is "two hundred forty-three million, two hundred two thousand, one hundred forty-three".