1000169 has 4 divisors (see below), whose sum is σ = 1005444. Its totient is φ = 994896.

The previous prime is 1000159. The next prime is 1000171. The reversal of 1000169 is 9610001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 976144 + 24025 = 988^2 + 155^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000169 is a prime.

It is a super-2 number, since 2×1000169² = 2000676057122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000159) 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, 2342 + ... + 2735.

It is an arithmetic number, because the mean of its divisors is an integer number (251361).

2^1000169 is an apocalyptic number.

It is an amenable number.

1000169 is a deficient number, since it is larger than the sum of its proper divisors (5275).

1000169 is an equidigital number, since it uses as much as digits as its factorization.

1000169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5274.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 1000169 is about 1000.0844964302. The cubic root of 1000169 is about 100.0056330160.

The spelling of 1000169 in words is "one million, one hundred sixty-nine", and thus it is an aban number.