1105555 has 8 divisors (see below), whose sum is σ = 1447344. Its totient is φ = 804000.

The previous prime is 1105549. The next prime is 1105571. The reversal of 1105555 is 5555011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1105555 - 2³ = 1105547 is a prime.

It is a Duffinian number.

1105555 is a modest number, since divided by 5555 gives 110 as remainder.

1105555 is a lucky number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9996 + ... + 10105.

It is an arithmetic number, because the mean of its divisors is an integer number (180918).

2^1105555 is an apocalyptic number.

1105555 is a deficient number, since it is larger than the sum of its proper divisors (341789).

1105555 is a wasteful number, since it uses less digits than its factorization.

1105555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20117.

The product of its (nonzero) digits is 625, while the sum is 22.

The square root of 1105555 is about 1051.4537555214. The cubic root of 1105555 is about 103.4014870083.

It can be divided in two parts, 110 and 5555, that added together give a palindrome (5665).

The spelling of 1105555 in words is "one million, one hundred five thousand, five hundred fifty-five".