11102405 has 8 divisors (see below), whose sum is σ = 13683192. Its totient is φ = 8641728.

The previous prime is 11102401. The next prime is 11102407. The reversal of 11102405 is 50420111.

It can be written as a sum of positive squares in 4 ways, for example, as 4456321 + 6646084 = 2111^2 + 2578^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11102405 - 2² = 11102401 is a prime.

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 11102405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11102401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29822 + ... + 30191.

It is an arithmetic number, because the mean of its divisors is an integer number (1710399).

Almost surely, 2^11102405 is an apocalyptic number.

It is an amenable number.

11102405 is a deficient number, since it is larger than the sum of its proper divisors (2580787).

11102405 is an equidigital number, since it uses as much as digits as its factorization.

11102405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60055.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 11102405 is about 3332.0271607536. The cubic root of 11102405 is about 223.0860198888.

Adding to 11102405 its reverse (50420111), we get a palindrome (61522516).

The spelling of 11102405 in words is "eleven million, one hundred two thousand, four hundred five".