242712571 has 4 divisors (see below), whose sum is σ = 251082000. Its totient is φ = 234343144.

The previous prime is 242712551. The next prime is 242712581. The reversal of 242712571 is 175217242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242712571 - 2¹⁹ = 242188283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242712551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4184671 + ... + 4184728.

It is an arithmetic number, because the mean of its divisors is an integer number (62770500).

Almost surely, 2^242712571 is an apocalyptic number.

242712571 is a deficient number, since it is larger than the sum of its proper divisors (8369429).

242712571 is an equidigital number, since it uses as much as digits as its factorization.

242712571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8369428.

The product of its digits is 7840, while the sum is 31.

The square root of 242712571 is about 15579.2352508074. The cubic root of 242712571 is about 623.7790101674.

The spelling of 242712571 in words is "two hundred forty-two million, seven hundred twelve thousand, five hundred seventy-one".