242131155 has 32 divisors (see below), whose sum is σ = 466060800. Its totient is φ = 104861952.

The previous prime is 242131093. The next prime is 242131163. The reversal of 242131155 is 551131242.

It is a happy number.

It is not a de Polignac number, because 242131155 - 2⁷ = 242131027 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, 58690 + ... + 62679.

It is an arithmetic number, because the mean of its divisors is an integer number (14564400).

Almost surely, 2^242131155 is an apocalyptic number.

242131155 is a deficient number, since it is larger than the sum of its proper divisors (223929645).

242131155 is a wasteful number, since it uses less digits than its factorization.

242131155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121403.

The product of its digits is 1200, while the sum is 24.

The square root of 242131155 is about 15560.5640964587. The cubic root of 242131155 is about 623.2805260598.

Adding to 242131155 its reverse (551131242), we get a palindrome (793262397).

The spelling of 242131155 in words is "two hundred forty-two million, one hundred thirty-one thousand, one hundred fifty-five".