1600103 has 4 divisors (see below), whose sum is σ = 1602888. Its totient is φ = 1597320.

The previous prime is 1600099. The next prime is 1600121. The reversal of 1600103 is 3010061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3010061 = 37 ⋅81353.

It is a cyclic number.

It is not a de Polignac number, because 1600103 - 2² = 1600099 is a prime.

It is a super-2 number, since 2×1600103² = 5120659221218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1600153) 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, 176 + ... + 1797.

It is an arithmetic number, because the mean of its divisors is an integer number (400722).

2^1600103 is an apocalyptic number.

1600103 is a deficient number, since it is larger than the sum of its proper divisors (2785).

1600103 is an equidigital number, since it uses as much as digits as its factorization.

1600103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2784.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1600103 is about 1264.9517777370. The cubic root of 1600103 is about 116.9632192566.

Adding to 1600103 its reverse (3010061), we get a palindrome (4610164).

The spelling of 1600103 in words is "one million, six hundred thousand, one hundred three".