2143266 has 8 divisors (see below), whose sum is σ = 4286544. Its totient is φ = 714420.

The previous prime is 2143261. The next prime is 2143279. The reversal of 2143266 is 6623412.

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

2143266 is an admirable number.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2143261) 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 3 ways as a sum of consecutive naturals, for example, 178600 + ... + 178611.

It is an arithmetic number, because the mean of its divisors is an integer number (535818).

2^2143266 is an apocalyptic number.

2143266 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2143266 is a wasteful number, since it uses less digits than its factorization.

2143266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357216.

The product of its digits is 1728, while the sum is 24.

The square root of 2143266 is about 1463.9897540625. The cubic root of 2143266 is about 128.9313979329.

Adding to 2143266 its reverse (6623412), we get a palindrome (8766678).

It can be divided in two parts, 214326 and 6, that multiplied together give a square (1285956 = 1134²).

The spelling of 2143266 in words is "two million, one hundred forty-three thousand, two hundred sixty-six".