242641155 has 16 divisors (see below), whose sum is σ = 395552160. Its totient is φ = 126966528.

The previous prime is 242641141. The next prime is 242641163. The reversal of 242641155 is 551146242.

242641155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 242641155 - 2¹³ = 242632963 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151810 + ... + 153399.

It is an arithmetic number, because the mean of its divisors is an integer number (24722010).

Almost surely, 2^242641155 is an apocalyptic number.

242641155 is a deficient number, since it is larger than the sum of its proper divisors (152911005).

242641155 is a wasteful number, since it uses less digits than its factorization.

242641155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305270.

The product of its digits is 9600, while the sum is 30.

The square root of 242641155 is about 15576.9430569672. The cubic root of 242641155 is about 623.7178237037.

Adding to 242641155 its reverse (551146242), we get a palindrome (793787397).

The spelling of 242641155 in words is "two hundred forty-two million, six hundred forty-one thousand, one hundred fifty-five".