242813185 has 8 divisors (see below), whose sum is σ = 304044480. Its totient is φ = 185804784.

The previous prime is 242813177. The next prime is 242813209. The reversal of 242813185 is 581318242.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 242813185 - 2³ = 242813177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 242813185.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1055595 + ... + 1055824.

It is an arithmetic number, because the mean of its divisors is an integer number (38005560).

Almost surely, 2^242813185 is an apocalyptic number.

It is an amenable number.

242813185 is a deficient number, since it is larger than the sum of its proper divisors (61231295).

242813185 is a wasteful number, since it uses less digits than its factorization.

242813185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111447.

The product of its digits is 15360, while the sum is 34.

The square root of 242813185 is about 15582.4640220987. The cubic root of 242813185 is about 623.8651919843.

The spelling of 242813185 in words is "two hundred forty-two million, eight hundred thirteen thousand, one hundred eighty-five".