1105597 has 4 divisors (see below), whose sum is σ = 1135516. Its totient is φ = 1075680.

The previous prime is 1105589. The next prime is 1105603. The reversal of 1105597 is 7955011.

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 556516 + 549081 = 746^2 + 741^2 .

It is a cyclic number.

It is not a de Polignac number, because 1105597 - 2³ = 1105589 is a prime.

It is a Duffinian number.

1105597 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105537) by changing a digit.

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, 14904 + ... + 14977.

It is an arithmetic number, because the mean of its divisors is an integer number (283879).

2^1105597 is an apocalyptic number.

It is an amenable number.

1105597 is a deficient number, since it is larger than the sum of its proper divisors (29919).

1105597 is an equidigital number, since it uses as much as digits as its factorization.

1105597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29918.

The product of its (nonzero) digits is 1575, while the sum is 28.

The square root of 1105597 is about 1051.4737276794. The cubic root of 1105597 is about 103.4027963981.

The spelling of 1105597 in words is "one million, one hundred five thousand, five hundred ninety-seven".