11481500 has 24 divisors (see below), whose sum is σ = 25076688. Its totient is φ = 4592400.

The previous prime is 11481497. The next prime is 11481521. The reversal of 11481500 is 518411.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 10982 + ... + 11981.

It is an arithmetic number, because the mean of its divisors is an integer number (1044862).

Almost surely, 2^11481500 is an apocalyptic number.

11481500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11481500 is an abundant number, since it is smaller than the sum of its proper divisors (13595188).

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

11481500 is a wasteful number, since it uses less digits than its factorization.

11481500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22982 (or 22970 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 11481500 is about 3388.4362174903. The cubic root of 11481500 is about 225.5967696920.

Adding to 11481500 its reverse (518411), we get a palindrome (11999911).

The spelling of 11481500 in words is "eleven million, four hundred eighty-one thousand, five hundred".