11305005 has 16 divisors (see below), whose sum is σ = 18130560. Its totient is φ = 6015168.

The previous prime is 11305003. The next prime is 11305037. The reversal of 11305005 is 50050311.

11305005 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11305005 - 2¹ = 11305003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11305003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10104 + ... + 11166.

It is an arithmetic number, because the mean of its divisors is an integer number (1133160).

Almost surely, 2^11305005 is an apocalyptic number.

11305005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11305005 is a deficient number, since it is larger than the sum of its proper divisors (6825555).

11305005 is a wasteful number, since it uses less digits than its factorization.

11305005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1780.

The product of its (nonzero) digits is 75, while the sum is 15.

The square root of 11305005 is about 3362.2916292315. The cubic root of 11305005 is about 224.4348284628.

Adding to 11305005 its reverse (50050311), we get a palindrome (61355316).

The spelling of 11305005 in words is "eleven million, three hundred five thousand, five".