11481729 has 24 divisors (see below), whose sum is σ = 18298368. Its totient is φ = 6380640.

The previous prime is 11481707. The next prime is 11481737. The reversal of 11481729 is 92718411.

It is not a de Polignac number, because 11481729 - 2¹¹ = 11479681 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11481729.

It is not an unprimeable number, because it can be changed into a prime (11481629) 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 23 ways as a sum of consecutive naturals, for example, 4384 + ... + 6494.

It is an arithmetic number, because the mean of its divisors is an integer number (762432).

Almost surely, 2^11481729 is an apocalyptic number.

It is an amenable number.

11481729 is a deficient number, since it is larger than the sum of its proper divisors (6816639).

11481729 is a wasteful number, since it uses less digits than its factorization.

11481729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2165 (or 2158 counting only the distinct ones).

The product of its digits is 4032, while the sum is 33.

The square root of 11481729 is about 3388.4700087208. The cubic root of 11481729 is about 225.5982695343.

The spelling of 11481729 in words is "eleven million, four hundred eighty-one thousand, seven hundred twenty-nine".