1026005 has 4 divisors (see below), whose sum is σ = 1231212. Its totient is φ = 820800.

The previous prime is 1025957. The next prime is 1026029. The reversal of 1026005 is 5006201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5006201 = 1693 ⋅2957.

It can be written as a sum of positive squares in 2 ways, for example, as 702244 + 323761 = 838^2 + 569^2 .

It is not a de Polignac number, because 1026005 - 2⁸ = 1025749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102596 + ... + 102605.

It is an arithmetic number, because the mean of its divisors is an integer number (307803).

2^1026005 is an apocalyptic number.

It is an amenable number.

1026005 is a deficient number, since it is larger than the sum of its proper divisors (205207).

1026005 is an equidigital number, since it uses as much as digits as its factorization.

1026005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205206.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 1026005 is about 1012.9190490854. The cubic root of 1026005 is about 100.8594260427.

The spelling of 1026005 in words is "one million, twenty-six thousand, five".