11481543 has 12 divisors (see below), whose sum is σ = 16615768. Its totient is φ = 7639920.

The previous prime is 11481527. The next prime is 11481553. The reversal of 11481543 is 34518411.

It is a happy number.

11481543 is a `hidden beast` number, since 114 + 8 + 1 + 543 = 666.

11481543 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 11481543 - 2⁴ = 11481527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11481523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6273 + ... + 7893.

Almost surely, 2^11481543 is an apocalyptic number.

11481543 is a deficient number, since it is larger than the sum of its proper divisors (5134225).

11481543 is a wasteful number, since it uses less digits than its factorization.

11481543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2414 (or 2411 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 11481543 is about 3388.4425625942. The cubic root of 11481543 is about 225.5970513233.

Adding to 11481543 its reverse (34518411), we get a palindrome (45999954).

It can be divided in two parts, 1 and 1481543, that added together give a cube (1481544 = 114³).

The spelling of 11481543 in words is "eleven million, four hundred eighty-one thousand, five hundred forty-three".