1722163543 has 2 divisors, whose sum is σ = 1722163544. Its totient is φ = 1722163542.

The previous prime is 1722163517. The next prime is 1722163577. The reversal of 1722163543 is 3453612271.

It is an a-pointer prime, because the next prime (1722163577) can be obtained adding 1722163543 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1722163543 - 2⁹ = 1722163031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1722163499 and 1722163508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1722163943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 861081771 + 861081772.

It is an arithmetic number, because the mean of its divisors is an integer number (861081772).

Almost surely, 2^1722163543 is an apocalyptic number.

1722163543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1722163543 is an equidigital number, since it uses as much as digits as its factorization.

1722163543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 34.

The square root of 1722163543 is about 41498.9583363245. The cubic root of 1722163543 is about 1198.6474443542.

The spelling of 1722163543 in words is "one billion, seven hundred twenty-two million, one hundred sixty-three thousand, five hundred forty-three".