2145166 has 8 divisors (see below), whose sum is σ = 3258720. Its totient is φ = 1058928.

The previous prime is 2145163. The next prime is 2145173. The reversal of 2145166 is 6615412.

2145166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2145166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145163) 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 3 ways as a sum of consecutive naturals, for example, 6631 + ... + 6946.

It is an arithmetic number, because the mean of its divisors is an integer number (407340).

2^2145166 is an apocalyptic number.

2145166 is a deficient number, since it is larger than the sum of its proper divisors (1113554).

2145166 is a wasteful number, since it uses less digits than its factorization.

2145166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13658.

The product of its digits is 1440, while the sum is 25.

The square root of 2145166 is about 1464.6385219569. The cubic root of 2145166 is about 128.9694858019.

The spelling of 2145166 in words is "two million, one hundred forty-five thousand, one hundred sixty-six".