2181411 has 24 divisors (see below), whose sum is σ = 3354624. Its totient is φ = 1415880.

The previous prime is 2181379. The next prime is 2181419. The reversal of 2181411 is 1141812.

It is not a de Polignac number, because 2181411 - 2⁵ = 2181379 is a prime.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (2181419) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11326 + ... + 11516.

It is an arithmetic number, because the mean of its divisors is an integer number (139776).

2^2181411 is an apocalyptic number.

2181411 is a deficient number, since it is larger than the sum of its proper divisors (1173213).

2181411 is an equidigital number, since it uses as much as digits as its factorization.

2181411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 241 counting only the distinct ones).

The product of its digits is 64, while the sum is 18.

The square root of 2181411 is about 1476.9600536237. The cubic root of 2181411 is about 129.6917945353.

The spelling of 2181411 in words is "two million, one hundred eighty-one thousand, four hundred eleven".