2126210 has 16 divisors (see below), whose sum is σ = 3871800. Its totient is φ = 840576.

The previous prime is 2126203. The next prime is 2126213. The reversal of 2126210 is 126212.

It can be written as a sum of positive squares in 4 ways, for example, as 1087849 + 1038361 = 1043^2 + 1019^2 .

It is a Curzon number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (2126213) 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, 305 + ... + 2084.

2^2126210 is an apocalyptic number.

2126210 is a deficient number, since it is larger than the sum of its proper divisors (1745590).

2126210 is a wasteful number, since it uses less digits than its factorization.

2126210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2485.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2126210 is about 1458.1529412239. The cubic root of 2126210 is about 128.5884768693.

The spelling of 2126210 in words is "two million, one hundred twenty-six thousand, two hundred ten".