242646211 has 2 divisors, whose sum is σ = 242646212. Its totient is φ = 242646210.

The previous prime is 242646197. The next prime is 242646223. The reversal of 242646211 is 112646242.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242646211 - 2¹⁹ = 242121923 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 242646211.

It is not a weakly prime, because it can be changed into another prime (242646281) 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, 121323105 + 121323106.

It is an arithmetic number, because the mean of its divisors is an integer number (121323106).

Almost surely, 2^242646211 is an apocalyptic number.

242646211 is a deficient number, since it is larger than the sum of its proper divisors (1).

242646211 is an equidigital number, since it uses as much as digits as its factorization.

242646211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 28.

The square root of 242646211 is about 15577.1053472717. The cubic root of 242646211 is about 623.7221558836.

The spelling of 242646211 in words is "two hundred forty-two million, six hundred forty-six thousand, two hundred eleven".