1239039 has 12 divisors (see below), whose sum is σ = 1847872. Its totient is φ = 799200.

The previous prime is 1239023. The next prime is 1239041. The reversal of 1239039 is 9309321.

It is not a de Polignac number, because 1239039 - 2⁴ = 1239023 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 (1239089) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1942 + ... + 2499.

2^1239039 is an apocalyptic number.

1239039 is a deficient number, since it is larger than the sum of its proper divisors (608833).

1239039 is a wasteful number, since it uses less digits than its factorization.

1239039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4478 (or 4475 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 1239039 is about 1113.1212871920. The cubic root of 1239039 is about 107.4059462184.

The spelling of 1239039 in words is "one million, two hundred thirty-nine thousand, thirty-nine".