243552143 has 4 divisors (see below), whose sum is σ = 243757488. Its totient is φ = 243346800.

The previous prime is 243552137. The next prime is 243552193. The reversal of 243552143 is 341255342.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 243552143 - 2⁶ = 243552079 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 (243552193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100883 + ... + 103268.

It is an arithmetic number, because the mean of its divisors is an integer number (60939372).

Almost surely, 2^243552143 is an apocalyptic number.

243552143 is a deficient number, since it is larger than the sum of its proper divisors (205345).

243552143 is a wasteful number, since it uses less digits than its factorization.

243552143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205344.

The product of its digits is 14400, while the sum is 29.

The square root of 243552143 is about 15606.1572143818. The cubic root of 243552143 is about 624.4974246705.

The spelling of 243552143 in words is "two hundred forty-three million, five hundred fifty-two thousand, one hundred forty-three".