242115535 has 4 divisors (see below), whose sum is σ = 290538648. Its totient is φ = 193692424.

The previous prime is 242115493. The next prime is 242115541. The reversal of 242115535 is 535511242.

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 242115535 - 2¹⁵ = 242082767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24211549 + ... + 24211558.

It is an arithmetic number, because the mean of its divisors is an integer number (72634662).

Almost surely, 2^242115535 is an apocalyptic number.

242115535 is a deficient number, since it is larger than the sum of its proper divisors (48423113).

242115535 is an equidigital number, since it uses as much as digits as its factorization.

242115535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48423112.

The product of its digits is 6000, while the sum is 28.

The square root of 242115535 is about 15560.0621785390. The cubic root of 242115535 is about 623.2671230604.

Adding to 242115535 its reverse (535511242), we get a palindrome (777626777).

It can be divided in two parts, 2421 and 15535, that added together give a square (17956 = 134²).

The spelling of 242115535 in words is "two hundred forty-two million, one hundred fifteen thousand, five hundred thirty-five".