243352143 has 12 divisors (see below), whose sum is σ = 356324800. Its totient is φ = 160011936.

The previous prime is 243352103. The next prime is 243352159. The reversal of 243352143 is 341253342.

It is not a de Polignac number, because 243352143 - 2¹³ = 243343951 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 (243352103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 184543 + ... + 185856.

Almost surely, 2^243352143 is an apocalyptic number.

243352143 is a deficient number, since it is larger than the sum of its proper divisors (112972657).

243352143 is a wasteful number, since it uses less digits than its factorization.

243352143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370478 (or 370475 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 243352143 is about 15599.7481710443. The cubic root of 243352143 is about 624.3264363867.

The spelling of 243352143 in words is "two hundred forty-three million, three hundred fifty-two thousand, one hundred forty-three".