1103943 has 8 divisors (see below), whose sum is σ = 1522800. Its totient is φ = 710528.

The previous prime is 1103933. The next prime is 1103981. The reversal of 1103943 is 3493011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1103943 - 2⁵ = 1103911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6258 + ... + 6431.

It is an arithmetic number, because the mean of its divisors is an integer number (190350).

2^1103943 is an apocalyptic number.

1103943 is a deficient number, since it is larger than the sum of its proper divisors (418857).

1103943 is a wasteful number, since it uses less digits than its factorization.

1103943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12721.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 1103943 is about 1050.6869181635. The cubic root of 1103943 is about 103.3512062968.

Adding to 1103943 its reverse (3493011), we get a palindrome (4596954).

The spelling of 1103943 in words is "one million, one hundred three thousand, nine hundred forty-three".