242535 has 32 divisors (see below), whose sum is σ = 437760. Its totient is φ = 114048.

The previous prime is 242533. The next prime is 242551. The reversal of 242535 is 535242.

It is not a de Polignac number, because 242535 - 2¹ = 242533 is a prime.

It is a nialpdrome in base 12.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 242535.

It is not an unprimeable number, because it can be changed into a prime (242533) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6537 + ... + 6573.

It is an arithmetic number, because the mean of its divisors is an integer number (13680).

2²⁴²⁵³⁵ is an apocalyptic number.

242535 is a deficient number, since it is larger than the sum of its proper divisors (195225).

242535 is a wasteful number, since it uses less digits than its factorization.

242535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87.

The product of its digits is 1200, while the sum is 21.

The square root of 242535 is about 492.4784259234. The cubic root of 242535 is about 62.3626852019.

Adding to 242535 its sum of digits (21), we get a triangular number (242556 = T₆₉₆).

Adding to 242535 its reverse (535242), we get a palindrome (777777).

It can be divided in two parts, 242 and 535, that added together give a palindrome (777).

The spelling of 242535 in words is "two hundred forty-two thousand, five hundred thirty-five".