242711155 has 8 divisors (see below), whose sum is σ = 292185792. Its totient is φ = 193547328.

The previous prime is 242711153. The next prime is 242711171. The reversal of 242711155 is 551117242.

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

It is a cyclic number.

It is not a de Polignac number, because 242711155 - 2¹ = 242711153 is a prime.

It is a super-2 number, since 2×242711155² = 117817409522868050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242711153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75979 + ... + 79108.

It is an arithmetic number, because the mean of its divisors is an integer number (36523224).

Almost surely, 2^242711155 is an apocalyptic number.

242711155 is a deficient number, since it is larger than the sum of its proper divisors (49474637).

242711155 is a wasteful number, since it uses less digits than its factorization.

242711155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155405.

The product of its digits is 2800, while the sum is 28.

The square root of 242711155 is about 15579.1898056350. The cubic root of 242711155 is about 623.7777971101. Note that the first 4 decimals are identical.

Adding to 242711155 its reverse (551117242), we get a palindrome (793828397).

The spelling of 242711155 in words is "two hundred forty-two million, seven hundred eleven thousand, one hundred fifty-five".