11481081 has 8 divisors (see below), whose sum is σ = 15326784. Its totient is φ = 7644720.

The previous prime is 11481077. The next prime is 11481109. The reversal of 11481081 is 18018411.

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

It is not a de Polignac number, because 11481081 - 2² = 11481077 is a prime.

It is a super-2 number, since 2×11481081² = 263630441857122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11489081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1380 + ... + 4986.

It is an arithmetic number, because the mean of its divisors is an integer number (1915848).

Almost surely, 2^11481081 is an apocalyptic number.

It is an amenable number.

11481081 is a deficient number, since it is larger than the sum of its proper divisors (3845703).

11481081 is a wasteful number, since it uses less digits than its factorization.

11481081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4671.

The product of its (nonzero) digits is 256, while the sum is 24.

The square root of 11481081 is about 3388.3743889954. The cubic root of 11481081 is about 225.5940253875.

Adding to 11481081 its reverse (18018411), we get a palindrome (29499492).

The spelling of 11481081 in words is "eleven million, four hundred eighty-one thousand, eighty-one".