1103365 has 4 divisors (see below), whose sum is σ = 1324044. Its totient is φ = 882688.

The previous prime is 1103353. The next prime is 1103371. The reversal of 1103365 is 5633011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5633011 = 109 ⋅51679.

It can be written as a sum of positive squares in 2 ways, for example, as 244036 + 859329 = 494^2 + 927^2 .

It is a cyclic number.

It is not a de Polignac number, because 1103365 - 2⁷ = 1103237 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110332 + ... + 110341.

It is an arithmetic number, because the mean of its divisors is an integer number (331011).

2^1103365 is an apocalyptic number.

It is an amenable number.

1103365 is a deficient number, since it is larger than the sum of its proper divisors (220679).

1103365 is an equidigital number, since it uses as much as digits as its factorization.

1103365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220678.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 1103365 is about 1050.4118240005. The cubic root of 1103365 is about 103.3331656836. Note that the first 3 decimals are identical.

Adding to 1103365 its reverse (5633011), we get a palindrome (6736376).

The spelling of 1103365 in words is "one million, one hundred three thousand, three hundred sixty-five".