242502513 has 12 divisors (see below), whose sum is σ = 355403664. Its totient is φ = 146971000.

The previous prime is 242502493. The next prime is 242502517. The reversal of 242502513 is 315205242.

It is not a de Polignac number, because 242502513 - 2⁸ = 242502257 is a prime.

It is a super-2 number, since 2×242502513² = 117614937622630338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (242502517) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 333663 + ... + 334388.

It is an arithmetic number, because the mean of its divisors is an integer number (29616972).

Almost surely, 2^242502513 is an apocalyptic number.

It is an amenable number.

242502513 is a deficient number, since it is larger than the sum of its proper divisors (112901151).

242502513 is a wasteful number, since it uses less digits than its factorization.

242502513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668076 (or 668065 counting only the distinct ones).

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

The square root of 242502513 is about 15572.4921897556. The cubic root of 242502513 is about 623.5990063199.

Adding to 242502513 its reverse (315205242), we get a palindrome (557707755).

The spelling of 242502513 in words is "two hundred forty-two million, five hundred two thousand, five hundred thirteen".