243089095 has 4 divisors (see below), whose sum is σ = 291706920. Its totient is φ = 194471272.

The previous prime is 243089089. The next prime is 243089117. The reversal of 243089095 is 590980342.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 243089095 - 2¹⁹ = 242564807 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24308905 + ... + 24308914.

It is an arithmetic number, because the mean of its divisors is an integer number (72926730).

Almost surely, 2^243089095 is an apocalyptic number.

243089095 is a deficient number, since it is larger than the sum of its proper divisors (48617825).

243089095 is an equidigital number, since it uses as much as digits as its factorization.

243089095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48617824.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 243089095 is about 15591.3147296820. The cubic root of 243089095 is about 624.1014030568.

The spelling of 243089095 in words is "two hundred forty-three million, eighty-nine thousand, ninety-five".