2106543 has 8 divisors (see below), whose sum is σ = 2899456. Its totient is φ = 1359000.

The previous prime is 2106529. The next prime is 2106551. The reversal of 2106543 is 3456012.

It is a happy number.

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

It is not a de Polignac number, because 2106543 - 2⁶ = 2106479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11233 + ... + 11418.

It is an arithmetic number, because the mean of its divisors is an integer number (362432).

2^2106543 is an apocalyptic number.

2106543 is a deficient number, since it is larger than the sum of its proper divisors (792913).

2106543 is a wasteful number, since it uses less digits than its factorization.

2106543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22685.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2106543 is about 1451.3934683607. The cubic root of 2106543 is about 128.1907759034.

The spelling of 2106543 in words is "two million, one hundred six thousand, five hundred forty-three".