242507 has 4 divisors (see below), whose sum is σ = 243936. Its totient is φ = 241080.

The previous prime is 242491. The next prime is 242509. The reversal of 242507 is 705242.

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 242507 - 2⁴ = 242491 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 242507.

It is not an unprimeable number, because it can be changed into a prime (242509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419 + ... + 812.

It is an arithmetic number, because the mean of its divisors is an integer number (60984).

2²⁴²⁵⁰⁷ is an apocalyptic number.

242507 is a deficient number, since it is larger than the sum of its proper divisors (1429).

242507 is a wasteful number, since it uses less digits than its factorization.

242507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428.

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 242507 is about 492.4499974617. The cubic root of 242507 is about 62.3602852426.

Adding to 242507 its reverse (705242), we get a palindrome (947749).

The spelling of 242507 in words is "two hundred forty-two thousand, five hundred seven".