2139837 has 32 divisors (see below), whose sum is σ = 3563520. Its totient is φ = 1114560.

The previous prime is 2139829. The next prime is 2139857. The reversal of 2139837 is 7389312.

2139837 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2139837 - 2³ = 2139829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2139798 and 2139807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2139817) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 12283 + ... + 12455.

It is an arithmetic number, because the mean of its divisors is an integer number (111360).

2^2139837 is an apocalyptic number.

It is an amenable number.

2139837 is a deficient number, since it is larger than the sum of its proper divisors (1423683).

2139837 is a wasteful number, since it uses less digits than its factorization.

2139837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233.

The product of its digits is 9072, while the sum is 33.

The square root of 2139837 is about 1462.8181705188. The cubic root of 2139837 is about 128.8626023429.

The spelling of 2139837 in words is "two million, one hundred thirty-nine thousand, eight hundred thirty-seven".