242523217 has 8 divisors (see below), whose sum is σ = 247291200. Its totient is φ = 237777264.

The previous prime is 242523191. The next prime is 242523223. The reversal of 242523217 is 712325242.

242523217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 242523217 - 2⁷ = 242523089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242523517) 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, 17668 + ... + 28234.

It is an arithmetic number, because the mean of its divisors is an integer number (30911400).

Almost surely, 2^242523217 is an apocalyptic number.

It is an amenable number.

242523217 is a deficient number, since it is larger than the sum of its proper divisors (4767983).

242523217 is a wasteful number, since it uses less digits than its factorization.

242523217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11015.

The product of its digits is 6720, while the sum is 28.

The square root of 242523217 is about 15573.1569374999. The cubic root of 242523217 is about 623.6167527015.

Adding to 242523217 its reverse (712325242), we get a palindrome (954848459).

The spelling of 242523217 in words is "two hundred forty-two million, five hundred twenty-three thousand, two hundred seventeen".