2126566 has 16 divisors (see below), whose sum is σ = 3477600. Its totient is φ = 969408.

The previous prime is 2126549. The next prime is 2126567. The reversal of 2126566 is 6656212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2126567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1855 + ... + 2773.

It is an arithmetic number, because the mean of its divisors is an integer number (217350).

2^2126566 is an apocalyptic number.

2126566 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2126566 is a deficient number, since it is larger than the sum of its proper divisors (1351034).

2126566 is a wasteful number, since it uses less digits than its factorization.

2126566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023.

The product of its digits is 4320, while the sum is 28.

The square root of 2126566 is about 1458.2750083575. The cubic root of 2126566 is about 128.5956531662.

The spelling of 2126566 in words is "two million, one hundred twenty-six thousand, five hundred sixty-six".