2125863 has 6 divisors (see below), whose sum is σ = 3070704. Its totient is φ = 1417236.

The previous prime is 2125847. The next prime is 2125873. The reversal of 2125863 is 3685212.

It is not a de Polignac number, because 2125863 - 2⁴ = 2125847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125813) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 118095 + ... + 118112.

It is an arithmetic number, because the mean of its divisors is an integer number (511784).

2^2125863 is an apocalyptic number.

2125863 is a deficient number, since it is larger than the sum of its proper divisors (944841).

2125863 is a wasteful number, since it uses less digits than its factorization.

2125863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236213 (or 236210 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 2125863 is about 1458.0339502220. The cubic root of 2125863 is about 128.5814812246.

It can be divided in two parts, 21258 and 63, that added together give a triangular number (21321 = T₂₀₆).

The spelling of 2125863 in words is "two million, one hundred twenty-five thousand, eight hundred sixty-three".