1105897 has 8 divisors (see below), whose sum is σ = 1204616. Its totient is φ = 1009152.

The previous prime is 1105891. The next prime is 1105913. The reversal of 1105897 is 7985011.

It can be written as a sum of positive squares in 4 ways, for example, as 137641 + 968256 = 371^2 + 984^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1105897 - 2¹¹ = 1103849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1105891) 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 7 ways as a sum of consecutive naturals, for example, 823 + ... + 1699.

It is an arithmetic number, because the mean of its divisors is an integer number (150577).

2^1105897 is an apocalyptic number.

It is an amenable number.

1105897 is a deficient number, since it is larger than the sum of its proper divisors (98719).

1105897 is an equidigital number, since it uses as much as digits as its factorization.

1105897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987.

The product of its (nonzero) digits is 2520, while the sum is 31.

The square root of 1105897 is about 1051.6163749201. The cubic root of 1105897 is about 103.4121482184.

It can be divided in two parts, 1105 and 897, that added together give a palindrome (2002).

The spelling of 1105897 in words is "one million, one hundred five thousand, eight hundred ninety-seven".