242533155 has 32 divisors (see below), whose sum is σ = 394896384. Its totient is φ = 127091456.

The previous prime is 242533147. The next prime is 242533189. The reversal of 242533155 is 551335242.

242533155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 242533155 - 2³ = 242533147 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 219334 + ... + 220436.

It is an arithmetic number, because the mean of its divisors is an integer number (12340512).

Almost surely, 2^242533155 is an apocalyptic number.

242533155 is a deficient number, since it is larger than the sum of its proper divisors (152363229).

242533155 is a wasteful number, since it uses less digits than its factorization.

242533155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355.

The product of its digits is 18000, while the sum is 30.

The square root of 242533155 is about 15573.4760089069. The cubic root of 242533155 is about 623.6252706745.

Adding to 242533155 its reverse (551335242), we get a palindrome (793868397).

The spelling of 242533155 in words is "two hundred forty-two million, five hundred thirty-three thousand, one hundred fifty-five".