242271047 has 2 divisors, whose sum is σ = 242271048. Its totient is φ = 242271046.

The previous prime is 242271011. The next prime is 242271053. The reversal of 242271047 is 740172242.

242271047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242271047 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242271067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121135523 + 121135524.

It is an arithmetic number, because the mean of its divisors is an integer number (121135524).

Almost surely, 2^242271047 is an apocalyptic number.

242271047 is a deficient number, since it is larger than the sum of its proper divisors (1).

242271047 is an equidigital number, since it uses as much as digits as its factorization.

242271047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6272, while the sum is 29.

The square root of 242271047 is about 15565.0585286404. The cubic root of 242271047 is about 623.4005370141.

The spelling of 242271047 in words is "two hundred forty-two million, two hundred seventy-one thousand, forty-seven".