2166741 has 12 divisors (see below), whose sum is σ = 3294720. Its totient is φ = 1368360.

The previous prime is 2166721. The next prime is 2166763. The reversal of 2166741 is 1476612.

2166741 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2166741 - 2⁵ = 2166709 is a prime.

It is a super-2 number, since 2×2166741² = 9389533122162, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6165 + ... + 6506.

It is an arithmetic number, because the mean of its divisors is an integer number (274560).

2^2166741 is an apocalyptic number.

It is an amenable number.

2166741 is a deficient number, since it is larger than the sum of its proper divisors (1127979).

2166741 is a wasteful number, since it uses less digits than its factorization.

2166741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12696 (or 12693 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 2166741 is about 1471.9853939493. The cubic root of 2166741 is about 129.4004143870.

The spelling of 2166741 in words is "two million, one hundred sixty-six thousand, seven hundred forty-one".