242725811 has 2 divisors, whose sum is σ = 242725812. Its totient is φ = 242725810.

The previous prime is 242725799. The next prime is 242725843. The reversal of 242725811 is 118527242.

It is an a-pointer prime, because the next prime (242725843) can be obtained adding 242725811 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242725811 - 2¹⁰ = 242724787 is a prime.

It is not a weakly prime, because it can be changed into another prime (242725891) 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, 121362905 + 121362906.

It is an arithmetic number, because the mean of its divisors is an integer number (121362906).

Almost surely, 2^242725811 is an apocalyptic number.

242725811 is a deficient number, since it is larger than the sum of its proper divisors (1).

242725811 is an equidigital number, since it uses as much as digits as its factorization.

242725811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8960, while the sum is 32.

The square root of 242725811 is about 15579.6601695929. The cubic root of 242725811 is about 623.7903523679.

The spelling of 242725811 in words is "two hundred forty-two million, seven hundred twenty-five thousand, eight hundred eleven".