2138935 has 4 divisors (see below), whose sum is σ = 2566728. Its totient is φ = 1711144.

The previous prime is 2138909. The next prime is 2138971. The reversal of 2138935 is 5398312.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2138935 - 2¹⁹ = 1614647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2138897 and 2138906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213889 + ... + 213898.

It is an arithmetic number, because the mean of its divisors is an integer number (641682).

2^2138935 is an apocalyptic number.

2138935 is a deficient number, since it is larger than the sum of its proper divisors (427793).

2138935 is an equidigital number, since it uses as much as digits as its factorization.

2138935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427792.

The product of its digits is 6480, while the sum is 31.

The square root of 2138935 is about 1462.5098290268. The cubic root of 2138935 is about 128.8444934241.

The spelling of 2138935 in words is "two million, one hundred thirty-eight thousand, nine hundred thirty-five".