11539081 has 8 divisors (see below), whose sum is σ = 11881800. Its totient is φ = 11199360.

The previous prime is 11539069. The next prime is 11539127. The reversal of 11539081 is 18093511.

11539081 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4862025 + 6677056 = 2205^2 + 2584^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 11539081 - 2⁵ = 11539049 is a prime.

It is a super-2 number, since 2×11539081² = 266300780649122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11539051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8775 + ... + 10003.

It is an arithmetic number, because the mean of its divisors is an integer number (1485225).

Almost surely, 2^11539081 is an apocalyptic number.

It is an amenable number.

11539081 is a deficient number, since it is larger than the sum of its proper divisors (342719).

11539081 is a wasteful number, since it uses less digits than its factorization.

11539081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1499.

The product of its (nonzero) digits is 1080, while the sum is 28.

The square root of 11539081 is about 3396.9222834796. The cubic root of 11539081 is about 225.9732719585.

The spelling of 11539081 in words is "eleven million, five hundred thirty-nine thousand, eighty-one".