103643 has 2 divisors, whose sum is σ = 103644.
Its totient is φ = 103642.
The previous prime is 103619. The next prime is 103651. The reversal of 103643 is 346301.
Adding to 103643 its reverse (346301), we get a palindrome (449944).
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 103643 - 28 = 103387 is a prime.
It is a super-3 number, since 3×1036433 = 3339959347766121, which contains 333 as substring.
It is a Sophie Germain prime.
It is a nialpdrome in base 7.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 103643.
It is not a weakly prime, because it can be changed into another prime (103613) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51821 + 51822.
It is an arithmetic number, because the mean of its divisors is an integer number (51822).
2103643 is an apocalyptic number.
103643 is a deficient number, since it is larger than the sum of its proper divisors (1).
103643 is an equidigital number, since it uses as much as digits as its factorization.
103643 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 216, while the sum is 17.
The square root of 103643 is about 321.9363291087.
The cubic root of 103643 is about 46.9728226764.
The spelling of 103643 in words is "one hundred three thousand, six hundred forty-three".