242113155 has 8 divisors (see below), whose sum is σ = 387381072. Its totient is φ = 129127008.

The previous prime is 242113153. The next prime is 242113171. The reversal of 242113155 is 551311242.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 242113155 - 2¹ = 242113153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242113153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8070424 + ... + 8070453.

It is an arithmetic number, because the mean of its divisors is an integer number (48422634).

Almost surely, 2^242113155 is an apocalyptic number.

242113155 is a deficient number, since it is larger than the sum of its proper divisors (145267917).

242113155 is a wasteful number, since it uses less digits than its factorization.

242113155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16140885.

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

The square root of 242113155 is about 15559.9857005076. The cubic root of 242113155 is about 623.2650808114.

Adding to 242113155 its reverse (551311242), we get a palindrome (793424397).

It can be divided in two parts, 2421 and 13155, that added together give a triangular number (15576 = T₁₇₆).

The spelling of 242113155 in words is "two hundred forty-two million, one hundred thirteen thousand, one hundred fifty-five".