242515115 has 16 divisors (see below), whose sum is σ = 309754368. Its totient is φ = 181641216.

The previous prime is 242515111. The next prime is 242515129. The reversal of 242515115 is 511515242.

It is a cyclic number.

It is not a de Polignac number, because 242515115 - 2² = 242515111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242515111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9014 + ... + 23796.

It is an arithmetic number, because the mean of its divisors is an integer number (19359648).

Almost surely, 2^242515115 is an apocalyptic number.

242515115 is a deficient number, since it is larger than the sum of its proper divisors (67239253).

242515115 is a wasteful number, since it uses less digits than its factorization.

242515115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14998.

The product of its digits is 2000, while the sum is 26.

The square root of 242515115 is about 15572.8968082371. The cubic root of 242515115 is about 623.6098082129.

The spelling of 242515115 in words is "two hundred forty-two million, five hundred fifteen thousand, one hundred fifteen".