103643443 has 2 divisors, whose sum is σ = 103643444. Its totient is φ = 103643442.

The previous prime is 103643431. The next prime is 103643489. The reversal of 103643443 is 344346301.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103643443 is a prime.

It is not a weakly prime, because it can be changed into another prime (103646443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51821721 + 51821722.

It is an arithmetic number, because the mean of its divisors is an integer number (51821722).

Almost surely, 2^103643443 is an apocalyptic number.

103643443 is a deficient number, since it is larger than the sum of its proper divisors (1).

103643443 is an equidigital number, since it uses as much as digits as its factorization.

103643443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 103643443 is about 10180.5423725851. The cubic root of 103643443 is about 469.7288960142.

Adding to 103643443 its reverse (344346301), we get a palindrome (447989744).

The spelling of 103643443 in words is "one hundred three million, six hundred forty-three thousand, four hundred forty-three".