2043539 has 2 divisors, whose sum is σ = 2043540. Its totient is φ = 2043538.

The previous prime is 2043523. The next prime is 2043541. The reversal of 2043539 is 9353402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2043539 - 2⁴ = 2043523 is a prime.

Together with 2043541, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 6.

It is a zygodrome in base 6.

It is not a weakly prime, because it can be changed into another prime (2043589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021769 + 1021770.

It is an arithmetic number, because the mean of its divisors is an integer number (1021770).

2^2043539 is an apocalyptic number.

2043539 is a deficient number, since it is larger than the sum of its proper divisors (1).

2043539 is an equidigital number, since it uses as much as digits as its factorization.

2043539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 2043539 is about 1429.5240466673. The cubic root of 2043539 is about 126.8998114499.

The spelling of 2043539 in words is "two million, forty-three thousand, five hundred thirty-nine".