2111841 has 12 divisors (see below), whose sum is σ = 3063060. Its totient is φ = 1402080.

The previous prime is 2111839. The next prime is 2111843. The reversal of 2111841 is 1481112.

It is an interprime number because it is at equal distance from previous prime (2111839) and next prime (2111843).

It can be written as a sum of positive squares in 2 ways, for example, as 1218816 + 893025 = 1104^2 + 945^2 .

It is not a de Polignac number, because 2111841 - 2¹ = 2111839 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2111843) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3895 + ... + 4403.

It is an arithmetic number, because the mean of its divisors is an integer number (255255).

2^2111841 is an apocalyptic number.

It is an amenable number.

2111841 is a deficient number, since it is larger than the sum of its proper divisors (951219).

2111841 is a wasteful number, since it uses less digits than its factorization.

2111841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976 (or 973 counting only the distinct ones).

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

The square root of 2111841 is about 1453.2174648001. The cubic root of 2111841 is about 128.2981534350.

Adding to 2111841 its reverse (1481112), we get a palindrome (3592953).

The spelling of 2111841 in words is "two million, one hundred eleven thousand, eight hundred forty-one".