2166295 has 4 divisors (see below), whose sum is σ = 2599560. Its totient is φ = 1733032.

The previous prime is 2166289. The next prime is 2166319. The reversal of 2166295 is 5926612.

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 2166295 - 2⁷ = 2166167 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216625 + ... + 216634.

It is an arithmetic number, because the mean of its divisors is an integer number (649890).

2^2166295 is an apocalyptic number.

2166295 is a deficient number, since it is larger than the sum of its proper divisors (433265).

2166295 is an equidigital number, since it uses as much as digits as its factorization.

2166295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433264.

The product of its digits is 6480, while the sum is 31.

The square root of 2166295 is about 1471.8338900841. The cubic root of 2166295 is about 129.3915352231.

The spelling of 2166295 in words is "two million, one hundred sixty-six thousand, two hundred ninety-five".