242223155 has 8 divisors (see below), whose sum is σ = 290910192. Its totient is φ = 193616928.

The previous prime is 242223151. The next prime is 242223169. The reversal of 242223155 is 551322242.

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 242223155 - 2² = 242223151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242223151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13397 + ... + 25766.

It is an arithmetic number, because the mean of its divisors is an integer number (36363774).

Almost surely, 2^242223155 is an apocalyptic number.

242223155 is a deficient number, since it is larger than the sum of its proper divisors (48687037).

242223155 is a wasteful number, since it uses less digits than its factorization.

242223155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40405.

The product of its digits is 4800, while the sum is 26.

The square root of 242223155 is about 15563.5200067337. The cubic root of 242223155 is about 623.3594564883.

Adding to 242223155 its reverse (551322242), we get a palindrome (793545397).

The spelling of 242223155 in words is "two hundred forty-two million, two hundred twenty-three thousand, one hundred fifty-five".