2126871 has 16 divisors (see below), whose sum is σ = 3237600. Its totient is φ = 1378944.

The previous prime is 2126867. The next prime is 2126893. The reversal of 2126871 is 1786212.

It is not a de Polignac number, because 2126871 - 2² = 2126867 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

2126871 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2126801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66 + ... + 2063.

It is an arithmetic number, because the mean of its divisors is an integer number (202350).

2^2126871 is an apocalyptic number.

2126871 is a deficient number, since it is larger than the sum of its proper divisors (1110729).

2126871 is a wasteful number, since it uses less digits than its factorization.

2126871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2175 (or 2169 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 2126871 is about 1458.3795802191. The cubic root of 2126871 is about 128.6018007612.

The spelling of 2126871 in words is "two million, one hundred twenty-six thousand, eight hundred seventy-one".