2150666 has 16 divisors (see below), whose sum is σ = 3715200. Its totient is φ = 914640.

The previous prime is 2150663. The next prime is 2150671. The reversal of 2150666 is 6660512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2150663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1571 + ... + 2601.

It is an arithmetic number, because the mean of its divisors is an integer number (232200).

2^2150666 is an apocalyptic number.

2150666 is a deficient number, since it is larger than the sum of its proper divisors (1564534).

2150666 is a wasteful number, since it uses less digits than its factorization.

2150666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 2150666 is about 1466.5149163919. The cubic root of 2150666 is about 129.0796135362.

The spelling of 2150666 in words is "two million, one hundred fifty thousand, six hundred sixty-six".