11481538 has 8 divisors (see below), whose sum is σ = 17271360. Its totient is φ = 5724420.

The previous prime is 11481527. The next prime is 11481553. The reversal of 11481538 is 83518411.

11481538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7278 + ... + 8713.

It is an arithmetic number, because the mean of its divisors is an integer number (2158920).

Almost surely, 2^11481538 is an apocalyptic number.

11481538 is a deficient number, since it is larger than the sum of its proper divisors (5789822).

11481538 is a wasteful number, since it uses less digits than its factorization.

11481538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16352.

The product of its digits is 3840, while the sum is 31.

The square root of 11481538 is about 3388.4418247920. The cubic root of 11481538 is about 225.5970185755.

Adding to 11481538 its reverse (83518411), we get a palindrome (94999949).

The spelling of 11481538 in words is "eleven million, four hundred eighty-one thousand, five hundred thirty-eight".