242959247 has 2 divisors, whose sum is σ = 242959248. Its totient is φ = 242959246.

The previous prime is 242959243. The next prime is 242959253. The reversal of 242959247 is 742959242.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242959247 - 2² = 242959243 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 242959198 and 242959207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242959243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121479623 + 121479624.

It is an arithmetic number, because the mean of its divisors is an integer number (121479624).

Almost surely, 2^242959247 is an apocalyptic number.

242959247 is a deficient number, since it is larger than the sum of its proper divisors (1).

242959247 is an equidigital number, since it uses as much as digits as its factorization.

242959247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 44.

The square root of 242959247 is about 15587.1500602259. The cubic root of 242959247 is about 623.9902603331.

The spelling of 242959247 in words is "two hundred forty-two million, nine hundred fifty-nine thousand, two hundred forty-seven".