2072166 has 16 divisors (see below), whose sum is σ = 4287600. Its totient is φ = 666848.

The previous prime is 2072153. The next prime is 2072179. The reversal of 2072166 is 6612702.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2072153) and next prime (2072179).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5781 + ... + 6128.

It is an arithmetic number, because the mean of its divisors is an integer number (267975).

2^2072166 is an apocalyptic number.

2072166 is an abundant number, since it is smaller than the sum of its proper divisors (2215434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2072166 is a wasteful number, since it uses less digits than its factorization.

2072166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11943.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 2072166 is about 1439.5019972199. The cubic root of 2072166 is about 127.4896262225.

Adding to 2072166 its reverse (6612702), we get a palindrome (8684868).

The spelling of 2072166 in words is "two million, seventy-two thousand, one hundred sixty-six".