11151081 has 16 divisors (see below), whose sum is σ = 17390400. Its totient is φ = 7042464.

The previous prime is 11151073. The next prime is 11151131. The reversal of 11151081 is 18015111.

It is a happy number.

11151081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11151081 - 2³ = 11151073 is a prime.

It is a super-2 number, since 2×11151081² = 248693214937122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11151001) 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, 10356 + ... + 11381.

It is an arithmetic number, because the mean of its divisors is an integer number (1086900).

Almost surely, 2^11151081 is an apocalyptic number.

It is an amenable number.

11151081 is a deficient number, since it is larger than the sum of its proper divisors (6239319).

11151081 is a wasteful number, since it uses less digits than its factorization.

11151081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21765 (or 21759 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 18.

The square root of 11151081 is about 3339.3234344699. The cubic root of 11151081 is about 223.4115680958.

Adding to 11151081 its reverse (18015111), we get a palindrome (29166192).

The spelling of 11151081 in words is "eleven million, one hundred fifty-one thousand, eighty-one".