242006515 has 16 divisors (see below), whose sum is σ = 306208800. Its totient is φ = 183105792.

The previous prime is 242006497. The next prime is 242006519. The reversal of 242006515 is 515600242.

It is a cyclic number.

It is not a de Polignac number, because 242006515 - 2¹¹ = 242004467 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 242006515.

It is not an unprimeable number, because it can be changed into a prime (242006519) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65559 + ... + 69151.

It is an arithmetic number, because the mean of its divisors is an integer number (19138050).

Almost surely, 2^242006515 is an apocalyptic number.

242006515 is a deficient number, since it is larger than the sum of its proper divisors (64202285).

242006515 is a wasteful number, since it uses less digits than its factorization.

242006515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4326.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 242006515 is about 15556.5585847256. The cubic root of 242006515 is about 623.1735605897.

Adding to 242006515 its reverse (515600242), we get a palindrome (757606757).

The spelling of 242006515 in words is "two hundred forty-two million, six thousand, five hundred fifteen".