242231971 has 2 divisors, whose sum is σ = 242231972. Its totient is φ = 242231970.

The previous prime is 242231959. The next prime is 242231981. The reversal of 242231971 is 179132242.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242231971 - 2¹⁷ = 242100899 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (242231911) 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, 121115985 + 121115986.

It is an arithmetic number, because the mean of its divisors is an integer number (121115986).

Almost surely, 2^242231971 is an apocalyptic number.

242231971 is a deficient number, since it is larger than the sum of its proper divisors (1).

242231971 is an equidigital number, since it uses as much as digits as its factorization.

242231971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 31.

The square root of 242231971 is about 15563.8032305732. The cubic root of 242231971 is about 623.3670190329.

The spelling of 242231971 in words is "two hundred forty-two million, two hundred thirty-one thousand, nine hundred seventy-one".