243153343 has 2 divisors, whose sum is σ = 243153344. Its totient is φ = 243153342.

The previous prime is 243153319. The next prime is 243153349. The reversal of 243153343 is 343351342.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243153343 - 2²¹ = 241056191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243153349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121576671 + 121576672.

It is an arithmetic number, because the mean of its divisors is an integer number (121576672).

Almost surely, 2^243153343 is an apocalyptic number.

243153343 is a deficient number, since it is larger than the sum of its proper divisors (1).

243153343 is an equidigital number, since it uses as much as digits as its factorization.

243153343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 28.

The square root of 243153343 is about 15593.3749714422. The cubic root of 243153343 is about 624.1563811640.

The spelling of 243153343 in words is "two hundred forty-three million, one hundred fifty-three thousand, three hundred forty-three".