242711247 has 8 divisors (see below), whose sum is σ = 324353920. Its totient is φ = 161438040.

The previous prime is 242711239. The next prime is 242711251. The reversal of 242711247 is 742117242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 242711247 - 2³ = 242711239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242711257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90829 + ... + 93462.

It is an arithmetic number, because the mean of its divisors is an integer number (40544240).

Almost surely, 2^242711247 is an apocalyptic number.

242711247 is a deficient number, since it is larger than the sum of its proper divisors (81642673).

242711247 is a wasteful number, since it uses less digits than its factorization.

242711247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184733.

The product of its digits is 6272, while the sum is 30.

The square root of 242711247 is about 15579.1927582914. The cubic root of 242711247 is about 623.7778759247. Note that the first 3 decimals are identical.

Adding to 242711247 its reverse (742117242), we get a palindrome (984828489).

The spelling of 242711247 in words is "two hundred forty-two million, seven hundred eleven thousand, two hundred forty-seven".