242998159 has 2 divisors, whose sum is σ = 242998160. Its totient is φ = 242998158.

The previous prime is 242998099. The next prime is 242998199. The reversal of 242998159 is 951899242.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242998159 - 2²⁷ = 108780431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242998199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121499079 + 121499080.

It is an arithmetic number, because the mean of its divisors is an integer number (121499080).

Almost surely, 2^242998159 is an apocalyptic number.

242998159 is a deficient number, since it is larger than the sum of its proper divisors (1).

242998159 is an equidigital number, since it uses as much as digits as its factorization.

242998159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 49.

The square root of 242998159 is about 15588.3982179055. The cubic root of 242998159 is about 624.0235710127.

The spelling of 242998159 in words is "two hundred forty-two million, nine hundred ninety-eight thousand, one hundred fifty-nine".