2139835 has 4 divisors (see below), whose sum is σ = 2567808. Its totient is φ = 1711864.

The previous prime is 2139829. The next prime is 2139857. The reversal of 2139835 is 5389312.

It is a happy number.

2139835 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2139835 - 2⁹ = 2139323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2139797 and 2139806.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213979 + ... + 213988.

It is an arithmetic number, because the mean of its divisors is an integer number (641952).

2^2139835 is an apocalyptic number.

2139835 is a deficient number, since it is larger than the sum of its proper divisors (427973).

2139835 is an equidigital number, since it uses as much as digits as its factorization.

2139835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427972.

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

The square root of 2139835 is about 1462.8174869067. The cubic root of 2139835 is about 128.8625621957.

The spelling of 2139835 in words is "two million, one hundred thirty-nine thousand, eight hundred thirty-five".