1003173 has 8 divisors (see below), whose sum is σ = 1348608. Its totient is φ = 663264.

The previous prime is 1003141. The next prime is 1003193. The reversal of 1003173 is 3713001.

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

It is not a de Polignac number, because 1003173 - 2⁵ = 1003141 is a prime.

1003173 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003103) 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, 936 + ... + 1697.

It is an arithmetic number, because the mean of its divisors is an integer number (168576).

2^1003173 is an apocalyptic number.

It is an amenable number.

1003173 is a deficient number, since it is larger than the sum of its proper divisors (345435).

1003173 is a wasteful number, since it uses less digits than its factorization.

1003173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2763.

The product of its (nonzero) digits is 63, while the sum is 15.

The square root of 1003173 is about 1001.5852435015. The cubic root of 1003173 is about 100.1056549976.

Adding to 1003173 its product of nonzero digits (63), we get a triangular number (1003236 = T₁₄₁₆).

Adding to 1003173 its reverse (3713001), we get a palindrome (4716174).

It can be divided in two parts, 1003 and 173, that added together give a triangular number (1176 = T₄₈).

The spelling of 1003173 in words is "one million, three thousand, one hundred seventy-three".