242520513 has 8 divisors (see below), whose sum is σ = 323532000. Its totient is φ = 161594688.

The previous prime is 242520491. The next prime is 242520539. The reversal of 242520513 is 315025242.

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

It is not a de Polignac number, because 242520513 - 2⁹ = 242520001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242520583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14488 + ... + 26361.

It is an arithmetic number, because the mean of its divisors is an integer number (40441500).

Almost surely, 2^242520513 is an apocalyptic number.

It is an amenable number.

242520513 is a deficient number, since it is larger than the sum of its proper divisors (81011487).

242520513 is a wasteful number, since it uses less digits than its factorization.

242520513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42831.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 242520513 is about 15573.0701212060. The cubic root of 242520513 is about 623.6144350321.

Adding to 242520513 its reverse (315025242), we get a palindrome (557545755).

The spelling of 242520513 in words is "two hundred forty-two million, five hundred twenty thousand, five hundred thirteen".