243143429 has 2 divisors, whose sum is σ = 243143430. Its totient is φ = 243143428.

The previous prime is 243143423. The next prime is 243143441. The reversal of 243143429 is 924341342.

243143429 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146652100 + 96491329 = 12110^2 + 9823^2 .

It is a cyclic number.

It is not a de Polignac number, because 243143429 - 2¹⁶ = 243077893 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 243143395 and 243143404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243143423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121571714 + 121571715.

It is an arithmetic number, because the mean of its divisors is an integer number (121571715).

Almost surely, 2^243143429 is an apocalyptic number.

It is an amenable number.

243143429 is a deficient number, since it is larger than the sum of its proper divisors (1).

243143429 is an equidigital number, since it uses as much as digits as its factorization.

243143429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 32.

The square root of 243143429 is about 15593.0570767890. The cubic root of 243143429 is about 624.1478982174.

The spelling of 243143429 in words is "two hundred forty-three million, one hundred forty-three thousand, four hundred twenty-nine".