1043539 has 4 divisors (see below), whose sum is σ = 1192624. Its totient is φ = 894456.

The previous prime is 1043531. The next prime is 1043543. The reversal of 1043539 is 9353401.

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 1043539 - 2³ = 1043531 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1043531) 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 in 3 ways as a sum of consecutive naturals, for example, 74532 + ... + 74545.

It is an arithmetic number, because the mean of its divisors is an integer number (298156).

2^1043539 is an apocalyptic number.

1043539 is a deficient number, since it is larger than the sum of its proper divisors (149085).

1043539 is an equidigital number, since it uses as much as digits as its factorization.

1043539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149084.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 1043539 is about 1021.5375666122. The cubic root of 1043539 is about 101.4307324239.

The spelling of 1043539 in words is "one million, forty-three thousand, five hundred thirty-nine".