2166103 has 4 divisors (see below), whose sum is σ = 2174368. Its totient is φ = 2157840.

The previous prime is 2166077. The next prime is 2166113. The reversal of 2166103 is 3016612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2166103 - 2⁹ = 2165591 is a prime.

It is a Duffinian number.

2166103 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3726 + ... + 4267.

It is an arithmetic number, because the mean of its divisors is an integer number (543592).

2^2166103 is an apocalyptic number.

2166103 is a deficient number, since it is larger than the sum of its proper divisors (8265).

2166103 is an equidigital number, since it uses as much as digits as its factorization.

2166103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8264.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 2166103 is about 1471.7686638871. The cubic root of 2166103 is about 129.3877124275.

The spelling of 2166103 in words is "two million, one hundred sixty-six thousand, one hundred three".