242124155 has 16 divisors (see below), whose sum is σ = 357599424. Its totient is φ = 153256320.

The previous prime is 242124133. The next prime is 242124173. The reversal of 242124155 is 551421242.

It is not a de Polignac number, because 242124155 - 2⁸ = 242123899 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265616 + ... + 266525.

It is an arithmetic number, because the mean of its divisors is an integer number (22349964).

Almost surely, 2^242124155 is an apocalyptic number.

242124155 is a deficient number, since it is larger than the sum of its proper divisors (115475269).

242124155 is a wasteful number, since it uses less digits than its factorization.

242124155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532166.

The product of its digits is 3200, while the sum is 26.

The square root of 242124155 is about 15560.3391672547. The cubic root of 242124155 is about 623.2745196653.

Adding to 242124155 its reverse (551421242), we get a palindrome (793545397).

The spelling of 242124155 in words is "two hundred forty-two million, one hundred twenty-four thousand, one hundred fifty-five".