11409075 has 18 divisors (see below), whose sum is σ = 20435324. Its totient is φ = 6084720.

The previous prime is 11409071. The next prime is 11409077. The reversal of 11409075 is 57090411.

11409075 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 11409075 - 2² = 11409071 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11409071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 25129 + ... + 25578.

Almost surely, 2^11409075 is an apocalyptic number.

11409075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11409075 is a deficient number, since it is larger than the sum of its proper divisors (9026249).

11409075 is a wasteful number, since it uses less digits than its factorization.

11409075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50723 (or 50715 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 11409075 is about 3377.7322273975. The cubic root of 11409075 is about 225.1214159504.

Adding to 11409075 its reverse (57090411), we get a palindrome (68499486).

The spelling of 11409075 in words is "eleven million, four hundred nine thousand, seventy-five".