1105505 has 4 divisors (see below), whose sum is σ = 1326612. Its totient is φ = 884400.

The previous prime is 1105501. The next prime is 1105513. The reversal of 1105505 is 5055011.

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 214369 + 891136 = 463^2 + 944^2 .

It is not a de Polignac number, because 1105505 - 2² = 1105501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1105501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110546 + ... + 110555.

It is an arithmetic number, because the mean of its divisors is an integer number (331653).

2^1105505 is an apocalyptic number.

It is an amenable number.

1105505 is a deficient number, since it is larger than the sum of its proper divisors (221107).

1105505 is an equidigital number, since it uses as much as digits as its factorization.

1105505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221106.

The product of its (nonzero) digits is 125, while the sum is 17.

The square root of 1105505 is about 1051.4299786481. The cubic root of 1105505 is about 103.3999281676.

It can be divided in two parts, 110 and 5505, that multiplied together give a triangular number (605550 = T₁₁₀₀).

The spelling of 1105505 in words is "one million, one hundred five thousand, five hundred five".