242343247 has 2 divisors, whose sum is σ = 242343248. Its totient is φ = 242343246.

The previous prime is 242343223. The next prime is 242343259. The reversal of 242343247 is 742343242.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242343247 - 2¹⁵ = 242310479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242343287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121171623 + 121171624.

It is an arithmetic number, because the mean of its divisors is an integer number (121171624).

Almost surely, 2^242343247 is an apocalyptic number.

242343247 is a deficient number, since it is larger than the sum of its proper divisors (1).

242343247 is an equidigital number, since it uses as much as digits as its factorization.

242343247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 31.

The square root of 242343247 is about 15567.3776532851. The cubic root of 242343247 is about 623.4624580855.

Adding to 242343247 its reverse (742343242), we get a palindrome (984686489).

The spelling of 242343247 in words is "two hundred forty-two million, three hundred forty-three thousand, two hundred forty-seven".