242511 has 8 divisors (see below), whose sum is σ = 325680. Its totient is φ = 160512.

The previous prime is 242509. The next prime is 242519. The reversal of 242511 is 115242.

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

It is not a de Polignac number, because 242511 - 2¹ = 242509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242519) 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, 511 + ... + 863.

It is an arithmetic number, because the mean of its divisors is an integer number (40710).

2²⁴²⁵¹¹ is an apocalyptic number.

242511 is a deficient number, since it is larger than the sum of its proper divisors (83169).

242511 is a wasteful number, since it uses less digits than its factorization.

242511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585.

The product of its digits is 80, while the sum is 15.

The square root of 242511 is about 492.4540587710. The cubic root of 242511 is about 62.3606281053.

Adding to 242511 its reverse (115242), we get a palindrome (357753).

The spelling of 242511 in words is "two hundred forty-two thousand, five hundred eleven".