2149837 has 4 divisors (see below), whose sum is σ = 2276316. Its totient is φ = 2023360.

The previous prime is 2149813. The next prime is 2149853. The reversal of 2149837 is 7389412.

2149837 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 can be written as a sum of positive squares in 2 ways, for example, as 1425636 + 724201 = 1194^2 + 851^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2149837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2149867) 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 3 ways as a sum of consecutive naturals, for example, 63214 + ... + 63247.

It is an arithmetic number, because the mean of its divisors is an integer number (569079).

2^2149837 is an apocalyptic number.

It is an amenable number.

2149837 is a deficient number, since it is larger than the sum of its proper divisors (126479).

2149837 is a wasteful number, since it uses less digits than its factorization.

2149837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126478.

The product of its digits is 12096, while the sum is 34.

The square root of 2149837 is about 1466.2322462693. The cubic root of 2149837 is about 129.0630263098.

The spelling of 2149837 in words is "two million, one hundred forty-nine thousand, eight hundred thirty-seven".