11882081 has 4 divisors (see below), whose sum is σ = 11894064. Its totient is φ = 11870100.

The previous prime is 11882071. The next prime is 11882113. The reversal of 11882081 is 18028811.

11882081 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11882081 - 2¹⁰ = 11881057 is a prime.

It is a super-2 number, since 2×11882081² = 282367697781122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11882071) 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, 4355 + ... + 6536.

It is an arithmetic number, because the mean of its divisors is an integer number (2973516).

Almost surely, 2^11882081 is an apocalyptic number.

It is an amenable number.

11882081 is a deficient number, since it is larger than the sum of its proper divisors (11983).

11882081 is a wasteful number, since it uses less digits than its factorization.

11882081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11982.

The product of its (nonzero) digits is 1024, while the sum is 29.

The square root of 11882081 is about 3447.0394543724. The cubic root of 11882081 is about 228.1904700060.

The spelling of 11882081 in words is "eleven million, eight hundred eighty-two thousand, eighty-one".