1103405 has 4 divisors (see below), whose sum is σ = 1324092. Its totient is φ = 882720.

The previous prime is 1103371. The next prime is 1103437. The reversal of 1103405 is 5043011.

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 669124 + 434281 = 818^2 + 659^2 .

It is not a de Polignac number, because 1103405 - 2⁶ = 1103341 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1103405.

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, 110336 + ... + 110345.

It is an arithmetic number, because the mean of its divisors is an integer number (331023).

2^1103405 is an apocalyptic number.

It is an amenable number.

1103405 is a deficient number, since it is larger than the sum of its proper divisors (220687).

1103405 is an equidigital number, since it uses as much as digits as its factorization.

1103405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220686.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 1103405 is about 1050.4308639792. The cubic root of 1103405 is about 103.3344143719.

Adding to 1103405 its reverse (5043011), we get a palindrome (6146416).

The spelling of 1103405 in words is "one million, one hundred three thousand, four hundred five".