1005365 has 4 divisors (see below), whose sum is σ = 1206444. Its totient is φ = 804288.

The previous prime is 1005359. The next prime is 1005371. The reversal of 1005365 is 5635001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5635001 = 19 ⋅296579.

It is an interprime number because it is at equal distance from previous prime (1005359) and next prime (1005371).

It can be written as a sum of positive squares in 2 ways, for example, as 418609 + 586756 = 647^2 + 766^2 .

It is a cyclic number.

It is not a de Polignac number, because 1005365 - 2⁴ = 1005349 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 3 ways as a sum of consecutive naturals, for example, 100532 + ... + 100541.

It is an arithmetic number, because the mean of its divisors is an integer number (301611).

2^1005365 is an apocalyptic number.

It is an amenable number.

1005365 is a deficient number, since it is larger than the sum of its proper divisors (201079).

1005365 is an equidigital number, since it uses as much as digits as its factorization.

1005365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201078.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 1005365 is about 1002.6789117160. The cubic root of 1005365 is about 100.1785144695.

The spelling of 1005365 in words is "one million, five thousand, three hundred sixty-five".