242291185 has 4 divisors (see below), whose sum is σ = 290749428. Its totient is φ = 193832944.

The previous prime is 242291167. The next prime is 242291209. The reversal of 242291185 is 581192242.

242291185 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 122257249 + 120033936 = 11057^2 + 10956^2 .

It is a cyclic number.

It is not a de Polignac number, because 242291185 - 2⁹ = 242290673 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242291185.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24229114 + ... + 24229123.

It is an arithmetic number, because the mean of its divisors is an integer number (72687357).

Almost surely, 2^242291185 is an apocalyptic number.

It is an amenable number.

242291185 is a deficient number, since it is larger than the sum of its proper divisors (48458243).

242291185 is an equidigital number, since it uses as much as digits as its factorization.

242291185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48458242.

The product of its digits is 11520, while the sum is 34.

The square root of 242291185 is about 15565.7054128620. The cubic root of 242291185 is about 623.4178092558.

The spelling of 242291185 in words is "two hundred forty-two million, two hundred ninety-one thousand, one hundred eighty-five".