243053441 has 2 divisors, whose sum is σ = 243053442. Its totient is φ = 243053440.

The previous prime is 243053431. The next prime is 243053467. The reversal of 243053441 is 144350342.

It is an a-pointer prime, because the next prime (243053467) can be obtained adding 243053441 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 179452816 + 63600625 = 13396^2 + 7975^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243053441 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 243053441.

It is not a weakly prime, because it can be changed into another prime (243053401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121526720 + 121526721.

It is an arithmetic number, because the mean of its divisors is an integer number (121526721).

Almost surely, 2^243053441 is an apocalyptic number.

It is an amenable number.

243053441 is a deficient number, since it is larger than the sum of its proper divisors (1).

243053441 is an equidigital number, since it uses as much as digits as its factorization.

243053441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 243053441 is about 15590.1712947613. The cubic root of 243053441 is about 624.0708891426.

The spelling of 243053441 in words is "two hundred forty-three million, fifty-three thousand, four hundred forty-one".