2129875 has 16 divisors (see below), whose sum is σ = 2901600. Its totient is φ = 1548000.

The previous prime is 2129867. The next prime is 2129887. The reversal of 2129875 is 5789212.

It is not a de Polignac number, because 2129875 - 2³ = 2129867 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2129875.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 601 + ... + 2149.

It is an arithmetic number, because the mean of its divisors is an integer number (181350).

2^2129875 is an apocalyptic number.

2129875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2129875 is a deficient number, since it is larger than the sum of its proper divisors (771725).

2129875 is a wasteful number, since it uses less digits than its factorization.

2129875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575 (or 1565 counting only the distinct ones).

The product of its digits is 10080, while the sum is 34.

The square root of 2129875 is about 1459.4091270100. The cubic root of 2129875 is about 128.6623181554.

The spelling of 2129875 in words is "two million, one hundred twenty-nine thousand, eight hundred seventy-five".