1105823 has 2 divisors, whose sum is σ = 1105824. Its totient is φ = 1105822.

The previous prime is 1105813. The next prime is 1105847. The reversal of 1105823 is 3285011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1105823 - 2⁴ = 1105807 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1105795 and 1105804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1105813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552911 + 552912.

It is an arithmetic number, because the mean of its divisors is an integer number (552912).

2^1105823 is an apocalyptic number.

1105823 is a deficient number, since it is larger than the sum of its proper divisors (1).

1105823 is an equidigital number, since it uses as much as digits as its factorization.

1105823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1105823 is about 1051.5811903985. The cubic root of 1105823 is about 103.4098415932.

The spelling of 1105823 in words is "one million, one hundred five thousand, eight hundred twenty-three".