242540147 has 2 divisors, whose sum is σ = 242540148. Its totient is φ = 242540146.

The previous prime is 242540141. The next prime is 242540153. The reversal of 242540147 is 741045242.

It is a balanced prime because it is at equal distance from previous prime (242540141) and next prime (242540153).

It is a cyclic number.

It is not a de Polignac number, because 242540147 - 2¹² = 242536051 is a prime.

It is not a weakly prime, because it can be changed into another prime (242540141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121270073 + 121270074.

It is an arithmetic number, because the mean of its divisors is an integer number (121270074).

Almost surely, 2^242540147 is an apocalyptic number.

242540147 is a deficient number, since it is larger than the sum of its proper divisors (1).

242540147 is an equidigital number, since it uses as much as digits as its factorization.

242540147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8960, while the sum is 29.

The square root of 242540147 is about 15573.7004915338. The cubic root of 242540147 is about 623.6312634579.

Adding to 242540147 its reverse (741045242), we get a palindrome (983585389).

The spelling of 242540147 in words is "two hundred forty-two million, five hundred forty thousand, one hundred forty-seven".