1003165 has 8 divisors (see below), whose sum is σ = 1209528. Its totient is φ = 798720.

The previous prime is 1003141. The next prime is 1003193. The reversal of 1003165 is 5613001.

It can be written as a sum of positive squares in 4 ways, for example, as 40804 + 962361 = 202^2 + 981^2 .

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

It is not a de Polignac number, because 1003165 - 2⁵ = 1003133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1245 + ... + 1885.

It is an arithmetic number, because the mean of its divisors is an integer number (151191).

2^1003165 is an apocalyptic number.

It is an amenable number.

1003165 is a deficient number, since it is larger than the sum of its proper divisors (206363).

1003165 is an equidigital number, since it uses as much as digits as its factorization.

1003165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 1003165 is about 1001.5812498245. The cubic root of 1003165 is about 100.1053888928.

Adding to 1003165 its reverse (5613001), we get a palindrome (6616166).

The spelling of 1003165 in words is "one million, three thousand, one hundred sixty-five".