11503164 has 24 divisors (see below), whose sum is σ = 26904528. Its totient is φ = 3825280.

The previous prime is 11503157. The next prime is 11503181. The reversal of 11503164 is 46130511.

It is a self number, because there is not a number n which added to its sum of digits gives 11503164.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5824 + ... + 7544.

It is an arithmetic number, because the mean of its divisors is an integer number (1121022).

Almost surely, 2^11503164 is an apocalyptic number.

It is an amenable number.

11503164 is an abundant number, since it is smaller than the sum of its proper divisors (15401364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11503164 is a wasteful number, since it uses less digits than its factorization.

11503164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2285 (or 2283 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 11503164 is about 3391.6314658288. The cubic root of 11503164 is about 225.7385704943.

Adding to 11503164 its reverse (46130511), we get a palindrome (57633675).

The spelling of 11503164 in words is "eleven million, five hundred three thousand, one hundred sixty-four".