242316091 has 2 divisors, whose sum is σ = 242316092. Its totient is φ = 242316090.

The previous prime is 242316089. The next prime is 242316157. The reversal of 242316091 is 190613242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242316091 - 2¹ = 242316089 is a prime.

Together with 242316089, it forms a pair of twin primes.

It is equal to p_13281607 and since 242316091 and 13281607 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (242316031) 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, 121158045 + 121158046.

It is an arithmetic number, because the mean of its divisors is an integer number (121158046).

Almost surely, 2^242316091 is an apocalyptic number.

242316091 is a deficient number, since it is larger than the sum of its proper divisors (1).

242316091 is an equidigital number, since it uses as much as digits as its factorization.

242316091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 242316091 is about 15566.5054202926. The cubic root of 242316091 is about 623.4391696586.

The spelling of 242316091 in words is "two hundred forty-two million, three hundred sixteen thousand, ninety-one".