243295961 has 8 divisors (see below), whose sum is σ = 247283904. Its totient is φ = 239318640.

The previous prime is 243295937. The next prime is 243295973. The reversal of 243295961 is 169592342.

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

It is not a de Polignac number, because 243295961 - 2¹⁴ = 243279577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (243295561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52796 + ... + 57218.

It is an arithmetic number, because the mean of its divisors is an integer number (30910488).

Almost surely, 2^243295961 is an apocalyptic number.

It is an amenable number.

243295961 is a deficient number, since it is larger than the sum of its proper divisors (3987943).

243295961 is an equidigital number, since it uses as much as digits as its factorization.

243295961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5311.

The product of its digits is 116640, while the sum is 41.

The square root of 243295961 is about 15597.9473329025. The cubic root of 243295961 is about 624.2783872140.

The spelling of 243295961 in words is "two hundred forty-three million, two hundred ninety-five thousand, nine hundred sixty-one".