1389103 has 4 divisors (see below), whose sum is σ = 1393000. Its totient is φ = 1385208.

The previous prime is 1389097. The next prime is 1389107. The reversal of 1389103 is 3019831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3019831 = 23 ⋅131297.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1389103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1389107) 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 3 ways as a sum of consecutive naturals, for example, 1353 + ... + 2146.

It is an arithmetic number, because the mean of its divisors is an integer number (348250).

2^1389103 is an apocalyptic number.

1389103 is a deficient number, since it is larger than the sum of its proper divisors (3897).

1389103 is an equidigital number, since it uses as much as digits as its factorization.

1389103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3896.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 1389103 is about 1178.6021381280. The cubic root of 1389103 is about 111.5778913737.

The spelling of 1389103 in words is "one million, three hundred eighty-nine thousand, one hundred three".