11481481 has 16 divisors (see below), whose sum is σ = 12963456. Its totient is φ = 10080000.

The previous prime is 11481479. The next prime is 11481487. The reversal of 11481481 is 18418411.

11481481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11481481 - 2¹ = 11481479 is a prime.

It is a super-2 number, since 2×11481481² = 263648811906722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11481487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47521 + ... + 47761.

It is an arithmetic number, because the mean of its divisors is an integer number (810216).

Almost surely, 2^11481481 is an apocalyptic number.

11481481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11481481 is a deficient number, since it is larger than the sum of its proper divisors (1481975).

11481481 is a wasteful number, since it uses less digits than its factorization.

11481481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384.

The product of its digits is 1024, while the sum is 28.

The square root of 11481481 is about 3388.4334138360. The cubic root of 11481481 is about 225.5966452501.

Adding to 11481481 its reverse (18418411), we get a palindrome (29899892).

The spelling of 11481481 in words is "eleven million, four hundred eighty-one thousand, four hundred eighty-one".