11045881 has 16 divisors (see below), whose sum is σ = 13870080. Its totient is φ = 8545680.

The previous prime is 11045861. The next prime is 11045891. The reversal of 11045881 is 18854011.

11045881 is nontrivially palindromic in base 13.

It is not a de Polignac number, because 11045881 - 2¹¹ = 11043833 is a prime.

It is a super-2 number, since 2×11045881² = 244022974132322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11045861) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 12430 + ... + 13288.

It is an arithmetic number, because the mean of its divisors is an integer number (866880).

Almost surely, 2^11045881 is an apocalyptic number.

11045881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11045881 is a deficient number, since it is larger than the sum of its proper divisors (2824199).

11045881 is a wasteful number, since it uses less digits than its factorization.

11045881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044.

The product of its (nonzero) digits is 1280, while the sum is 28.

The square root of 11045881 is about 3323.5344138432. The cubic root of 11045881 is about 222.7067875143.

Adding to 11045881 its reverse (18854011), we get a palindrome (29899892).

The spelling of 11045881 in words is "eleven million, forty-five thousand, eight hundred eighty-one".