2138843 has 8 divisors (see below), whose sum is σ = 2484960. Its totient is φ = 1802880.

The previous prime is 2138833. The next prime is 2138861. The reversal of 2138843 is 3488312.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2138843 - 2¹⁴ = 2122459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2138803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2078 + ... + 2931.

It is an arithmetic number, because the mean of its divisors is an integer number (310620).

2^2138843 is an apocalyptic number.

2138843 is a deficient number, since it is larger than the sum of its proper divisors (346117).

2138843 is an equidigital number, since it uses as much as digits as its factorization.

2138843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5077.

The product of its digits is 4608, while the sum is 29.

The square root of 2138843 is about 1462.4783759085. The cubic root of 2138843 is about 128.8426461086.

The spelling of 2138843 in words is "two million, one hundred thirty-eight thousand, eight hundred forty-three".