10603 has 4 divisors (see below), whose sum is σ = 11088. Its totient is φ = 10120.

The previous prime is 10601. The next prime is 10607. The reversal of 10603 is 30601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30601 = 71 ⋅431.

It is not a de Polignac number, because 10603 - 2¹ = 10601 is a prime.

It is a super-2 number, since 2×10603² = 224847218, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10603.

It is not an unprimeable number, because it can be changed into a prime (10601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208 + ... + 253.

It is an arithmetic number, because the mean of its divisors is an integer number (2772).

2¹⁰⁶⁰³ is an apocalyptic number.

10603 is a deficient number, since it is larger than the sum of its proper divisors (485).

10603 is an equidigital number, since it uses as much as digits as its factorization.

10603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 10603 is about 102.9708696671. The cubic root of 10603 is about 21.9689645031.

Multiplying 10603 by its sum of digits (10), we get a triangular number (106030 = T₄₆₀).

Subtracting from 10603 its product of nonzero digits (18), we obtain a triangular number (10585 = T₁₄₅).

The spelling of 10603 in words is "ten thousand, six hundred three".