243814001 has 2 divisors, whose sum is σ = 243814002. Its totient is φ = 243814000.

The previous prime is 243813989. The next prime is 243814013. The reversal of 243814001 is 100418342.

It is a balanced prime because it is at equal distance from previous prime (243813989) and next prime (243814013).

It can be written as a sum of positive squares in only one way, i.e., 212722225 + 31091776 = 14585^2 + 5576^2 .

It is a cyclic number.

It is not a de Polignac number, because 243814001 - 2¹⁰ = 243812977 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (243814091) 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 as a sum of consecutive naturals, namely, 121907000 + 121907001.

It is an arithmetic number, because the mean of its divisors is an integer number (121907001).

Almost surely, 2^243814001 is an apocalyptic number.

It is an amenable number.

243814001 is a deficient number, since it is larger than the sum of its proper divisors (1).

243814001 is an equidigital number, since it uses as much as digits as its factorization.

243814001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 243814001 is about 15614.5445338633. The cubic root of 243814001 is about 624.7211564659.

It can be divided in two parts, 24381 and 4001, that added together give a palindrome (28382).

The spelling of 243814001 in words is "two hundred forty-three million, eight hundred fourteen thousand, one".