11881841 has 8 divisors (see below), whose sum is σ = 12247200. Its totient is φ = 11520160.

The previous prime is 11881829. The next prime is 11881843. The reversal of 11881841 is 14818811.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11881841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11881798 and 11881807.

It is not an unprimeable number, because it can be changed into a prime (11881843) 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 7 ways as a sum of consecutive naturals, for example, 6530 + ... + 8148.

It is an arithmetic number, because the mean of its divisors is an integer number (1530900).

Almost surely, 2^11881841 is an apocalyptic number.

It is an amenable number.

11881841 is a deficient number, since it is larger than the sum of its proper divisors (365359).

11881841 is a wasteful number, since it uses less digits than its factorization.

11881841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839.

The product of its digits is 2048, while the sum is 32.

The square root of 11881841 is about 3447.0046417143. The cubic root of 11881841 is about 228.1889336286.

Subtracting from 11881841 its sum of digits (32), we obtain a square (11881809 = 3447²).

It can be divided in two parts, 11881 and 841, that multiplied together give a square (9991921 = 3161²).

The spelling of 11881841 in words is "eleven million, eight hundred eighty-one thousand, eight hundred forty-one".