242147223 has 24 divisors (see below), whose sum is σ = 353698800. Its totient is φ = 159629184.

The previous prime is 242147221. The next prime is 242147237. The reversal of 242147223 is 322741242.

It is not a de Polignac number, because 242147223 - 2¹ = 242147221 is a prime.

It is a super-2 number, since 2×242147223² = 117270555213223458, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242147221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 577708 + ... + 578126.

It is an arithmetic number, because the mean of its divisors is an integer number (14737450).

Almost surely, 2^242147223 is an apocalyptic number.

242147223 is a deficient number, since it is larger than the sum of its proper divisors (111551577).

242147223 is a wasteful number, since it uses less digits than its factorization.

242147223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991 (or 988 counting only the distinct ones).

The product of its digits is 5376, while the sum is 27.

The square root of 242147223 is about 15561.0803930833. The cubic root of 242147223 is about 623.2943128716.

Adding to 242147223 its reverse (322741242), we get a palindrome (564888465).

The spelling of 242147223 in words is "two hundred forty-two million, one hundred forty-seven thousand, two hundred twenty-three".