2180126 has 16 divisors (see below), whose sum is σ = 3574368. Its totient is φ = 991200.

The previous prime is 2180119. The next prime is 2180141. The reversal of 2180126 is 6210812.

It is a junction number, because it is equal to n+sod(n) for n = 2180098 and 2180107.

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, 1256 + ... + 2436.

It is an arithmetic number, because the mean of its divisors is an integer number (223398).

2^2180126 is an apocalyptic number.

2180126 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2180126 is a deficient number, since it is larger than the sum of its proper divisors (1394242).

2180126 is a wasteful number, since it uses less digits than its factorization.

2180126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 2180126 is about 1476.5249743909. The cubic root of 2180126 is about 129.6663237597. Note that the first 3 decimals are identical.

Adding to 2180126 its reverse (6210812), we get a palindrome (8390938).

The spelling of 2180126 in words is "two million, one hundred eighty thousand, one hundred twenty-six".