1092005 has 4 divisors (see below), whose sum is σ = 1310412. Its totient is φ = 873600.

The previous prime is 1091983. The next prime is 1092019. The reversal of 1092005 is 5002901.

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 315844 + 776161 = 562^2 + 881^2 .

It is not a de Polignac number, because 1092005 - 2⁸ = 1091749 is a prime.

It is an Ulam number.

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, 109196 + ... + 109205.

It is an arithmetic number, because the mean of its divisors is an integer number (327603).

2^1092005 is an apocalyptic number.

It is an amenable number.

1092005 is a deficient number, since it is larger than the sum of its proper divisors (218407).

1092005 is an equidigital number, since it uses as much as digits as its factorization.

1092005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218406.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 1092005 is about 1044.9904305782. The cubic root of 1092005 is about 102.9773098604.

Adding to 1092005 its reverse (5002901), we get a palindrome (6094906).

The spelling of 1092005 in words is "one million, ninety-two thousand, five".