11885081 has 4 divisors (see below), whose sum is σ = 12799332. Its totient is φ = 10970832.

The previous prime is 11885077. The next prime is 11885087. The reversal of 11885081 is 18058811.

11885081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6553600 + 5331481 = 2560^2 + 2309^2 .

It is a cyclic number.

It is not a de Polignac number, because 11885081 - 2² = 11885077 is a prime.

It is a super-2 number, since 2×11885081² = 282510300753122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11885087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 457106 + ... + 457131.

It is an arithmetic number, because the mean of its divisors is an integer number (3199833).

Almost surely, 2^11885081 is an apocalyptic number.

It is an amenable number.

11885081 is a deficient number, since it is larger than the sum of its proper divisors (914251).

11885081 is an equidigital number, since it uses as much as digits as its factorization.

11885081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914250.

The product of its (nonzero) digits is 2560, while the sum is 32.

The square root of 11885081 is about 3447.4745829375. The cubic root of 11885081 is about 228.2096729779.

The spelling of 11885081 in words is "eleven million, eight hundred eighty-five thousand, eighty-one".