242420147 has 2 divisors, whose sum is σ = 242420148. Its totient is φ = 242420146.

The previous prime is 242420083. The next prime is 242420177. The reversal of 242420147 is 741024242.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242420147 - 2⁶ = 242420083 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (242420177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121210073 + 121210074.

It is an arithmetic number, because the mean of its divisors is an integer number (121210074).

Almost surely, 2^242420147 is an apocalyptic number.

242420147 is a deficient number, since it is larger than the sum of its proper divisors (1).

242420147 is an equidigital number, since it uses as much as digits as its factorization.

242420147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3584, while the sum is 26.

The square root of 242420147 is about 15569.8473659828. The cubic root of 242420147 is about 623.5283965059.

Adding to 242420147 its reverse (741024242), we get a palindrome (983444389).

The spelling of 242420147 in words is "two hundred forty-two million, four hundred twenty thousand, one hundred forty-seven".