242596891 has 2 divisors, whose sum is σ = 242596892. Its totient is φ = 242596890.

The previous prime is 242596873. The next prime is 242596933. The reversal of 242596891 is 198695242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242596891 - 2¹³ = 242588699 is a prime.

It is not a weakly prime, because it can be changed into another prime (242596811) 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, 121298445 + 121298446.

It is an arithmetic number, because the mean of its divisors is an integer number (121298446).

Almost surely, 2^242596891 is an apocalyptic number.

242596891 is a deficient number, since it is larger than the sum of its proper divisors (1).

242596891 is an equidigital number, since it uses as much as digits as its factorization.

242596891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 46.

The square root of 242596891 is about 15575.5221742322. The cubic root of 242596891 is about 623.6798939953.

The spelling of 242596891 in words is "two hundred forty-two million, five hundred ninety-six thousand, eight hundred ninety-one".