1728148043 has 2 divisors, whose sum is σ = 1728148044. Its totient is φ = 1728148042.

The previous prime is 1728148031. The next prime is 1728148061. The reversal of 1728148043 is 3408418271.

It is a weak prime.

It is an emirp because it is prime and its reverse (3408418271) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1728148043 - 2¹⁴ = 1728131659 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1728147988 and 1728148006.

It is not a weakly prime, because it can be changed into another prime (1728148013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 864074021 + 864074022.

It is an arithmetic number, because the mean of its divisors is an integer number (864074022).

Almost surely, 2^1728148043 is an apocalyptic number.

1728148043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1728148043 is an equidigital number, since it uses as much as digits as its factorization.

1728148043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 1728148043 is about 41571.0000240552. Note that the first 4 decimals coincide. The cubic root of 1728148043 is about 1200.0342682344.

The spelling of 1728148043 in words is "one billion, seven hundred twenty-eight million, one hundred forty-eight thousand, forty-three".