243013159 has 2 divisors, whose sum is σ = 243013160. Its totient is φ = 243013158.

The previous prime is 243013139. The next prime is 243013163. The reversal of 243013159 is 951310342.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243013159 - 2⁷ = 243013031 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243013139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121506579 + 121506580.

It is an arithmetic number, because the mean of its divisors is an integer number (121506580).

Almost surely, 2^243013159 is an apocalyptic number.

243013159 is a deficient number, since it is larger than the sum of its proper divisors (1).

243013159 is an equidigital number, since it uses as much as digits as its factorization.

243013159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 243013159 is about 15588.8793375278. The cubic root of 243013159 is about 624.0364108370.

The spelling of 243013159 in words is "two hundred forty-three million, thirteen thousand, one hundred fifty-nine".