242769971 has 2 divisors, whose sum is σ = 242769972. Its totient is φ = 242769970.

The previous prime is 242769953. The next prime is 242769997. The reversal of 242769971 is 179967242.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242769971 is a prime.

It is a zygodrome in base 2.

It is not a weakly prime, because it can be changed into another prime (242769871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121384985 + 121384986.

It is an arithmetic number, because the mean of its divisors is an integer number (121384986).

Almost surely, 2^242769971 is an apocalyptic number.

242769971 is a deficient number, since it is larger than the sum of its proper divisors (1).

242769971 is an equidigital number, since it uses as much as digits as its factorization.

242769971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 47.

The square root of 242769971 is about 15581.0773375913. The cubic root of 242769971 is about 623.8281795654.

The spelling of 242769971 in words is "two hundred forty-two million, seven hundred sixty-nine thousand, nine hundred seventy-one".