1209103 has 8 divisors (see below), whose sum is σ = 1454720. Its totient is φ = 981720.

The previous prime is 1209083. The next prime is 1209107. The reversal of 1209103 is 3019021.

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 1209103 - 2⁹ = 1208591 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1209107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4413 + ... + 4678.

It is an arithmetic number, because the mean of its divisors is an integer number (181840).

2^1209103 is an apocalyptic number.

1209103 is a deficient number, since it is larger than the sum of its proper divisors (245617).

1209103 is an equidigital number, since it uses as much as digits as its factorization.

1209103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9117.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1209103 is about 1099.5921971349. The cubic root of 1209103 is about 106.5338853433.

The spelling of 1209103 in words is "one million, two hundred nine thousand, one hundred three".