243795162073 has 2 divisors, whose sum is σ = 243795162074. Its totient is φ = 243795162072.

The previous prime is 243795162071. The next prime is 243795162089. The reversal of 243795162073 is 370261597342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 241348177984 + 2446984089 = 491272^2 + 49467^2 .

It is a cyclic number.

It is not a de Polignac number, because 243795162073 - 2¹ = 243795162071 is a prime.

Together with 243795162071, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (243795162071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121897581036 + 121897581037.

It is an arithmetic number, because the mean of its divisors is an integer number (121897581037).

Almost surely, 2^243795162073 is an apocalyptic number.

It is an amenable number.

243795162073 is a deficient number, since it is larger than the sum of its proper divisors (1).

243795162073 is an equidigital number, since it uses as much as digits as its factorization.

243795162073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1905120, while the sum is 49.

The spelling of 243795162073 in words is "two hundred forty-three billion, seven hundred ninety-five million, one hundred sixty-two thousand, seventy-three".