2138125 has 20 divisors (see below), whose sum is σ = 2924064. Its totient is φ = 1550000.

The previous prime is 2138093. The next prime is 2138137. The reversal of 2138125 is 5218312.

It is not a de Polignac number, because 2138125 - 2⁵ = 2138093 is a prime.

2138125 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2138096 and 2138105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6720 + ... + 7030.

2^2138125 is an apocalyptic number.

2138125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2138125 is a deficient number, since it is larger than the sum of its proper divisors (785939).

2138125 is an equidigital number, since it uses as much as digits as its factorization.

2138125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342 (or 327 counting only the distinct ones).

The product of its digits is 480, while the sum is 22.

The square root of 2138125 is about 1462.2328815890. The cubic root of 2138125 is about 128.8282271956.

It can be divided in two parts, 213 and 8125, that added together give a palindrome (8338).

The spelling of 2138125 in words is "two million, one hundred thirty-eight thousand, one hundred twenty-five".