1103965 has 4 divisors (see below), whose sum is σ = 1324764. Its totient is φ = 883168.

The previous prime is 1103933. The next prime is 1103981. The reversal of 1103965 is 5693011.

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 777924 + 326041 = 882^2 + 571^2 .

It is a cyclic number.

It is not a de Polignac number, because 1103965 - 2⁵ = 1103933 is a prime.

It is a Duffinian number.

1103965 is a lucky 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, 110392 + ... + 110401.

It is an arithmetic number, because the mean of its divisors is an integer number (331191).

2^1103965 is an apocalyptic number.

It is an amenable number.

1103965 is a deficient number, since it is larger than the sum of its proper divisors (220799).

1103965 is an equidigital number, since it uses as much as digits as its factorization.

1103965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220798.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 1103965 is about 1050.6973874527. The cubic root of 1103965 is about 103.3518928393.

Adding to 1103965 its reverse (5693011), we get a palindrome (6796976).

The spelling of 1103965 in words is "one million, one hundred three thousand, nine hundred sixty-five".