242865185 has 8 divisors (see below), whose sum is σ = 293123880. Its totient is φ = 193168384.

The previous prime is 242865173. The next prime is 242865193. The reversal of 242865185 is 581568242.

It is a happy number.

242865185 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 43151761 + 199713424 = 6569^2 + 14132^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242865185 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139520 + ... + 141249.

It is an arithmetic number, because the mean of its divisors is an integer number (36640485).

Almost surely, 2^242865185 is an apocalyptic number.

It is an amenable number.

242865185 is a deficient number, since it is larger than the sum of its proper divisors (50258695).

242865185 is a wasteful number, since it uses less digits than its factorization.

242865185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280947.

The product of its digits is 153600, while the sum is 41.

The square root of 242865185 is about 15584.1324750530. The cubic root of 242865185 is about 623.9097237155.

The spelling of 242865185 in words is "two hundred forty-two million, eight hundred sixty-five thousand, one hundred eighty-five".