1105361405 has 4 divisors (see below), whose sum is σ = 1326433692. Its totient is φ = 884289120.

The previous prime is 1105361339. The next prime is 1105361407. The reversal of 1105361405 is 5041635011.

1105361405 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5041635011 = 7 ⋅720233573.

It can be written as a sum of positive squares in 2 ways, for example, as 185695129 + 919666276 = 13627^2 + 30326^2 .

It is not a de Polignac number, because 1105361405 - 2⁸ = 1105361149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105361407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110536136 + ... + 110536145.

It is an arithmetic number, because the mean of its divisors is an integer number (331608423).

Almost surely, 2^1105361405 is an apocalyptic number.

It is an amenable number.

1105361405 is a deficient number, since it is larger than the sum of its proper divisors (221072287).

1105361405 is an equidigital number, since it uses as much as digits as its factorization.

1105361405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221072286.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 1105361405 is about 33246.9758775140. The cubic root of 1105361405 is about 1033.9545107172.

Adding to 1105361405 its reverse (5041635011), we get a palindrome (6146996416).

The spelling of 1105361405 in words is "one billion, one hundred five million, three hundred sixty-one thousand, four hundred five".