242892191 has 2 divisors, whose sum is σ = 242892192. Its totient is φ = 242892190.

The previous prime is 242892157. The next prime is 242892233. The reversal of 242892191 is 191298242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242892191 - 2⁶ = 242892127 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 (242892101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121446095 + 121446096.

It is an arithmetic number, because the mean of its divisors is an integer number (121446096).

Almost surely, 2^242892191 is an apocalyptic number.

242892191 is a deficient number, since it is larger than the sum of its proper divisors (1).

242892191 is an equidigital number, since it uses as much as digits as its factorization.

242892191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 38.

The square root of 242892191 is about 15584.9989092075. The cubic root of 242892191 is about 623.9328485910.

The spelling of 242892191 in words is "two hundred forty-two million, eight hundred ninety-two thousand, one hundred ninety-one".