1001039 has 4 divisors (see below), whose sum is σ = 1078056. Its totient is φ = 924024.

The previous prime is 1001027. The next prime is 1001041. The reversal of 1001039 is 9301001.

1001039 is nontrivially palindromic in base 16.

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 1001039 - 2⁴ = 1001023 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 (1001069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38489 + ... + 38514.

It is an arithmetic number, because the mean of its divisors is an integer number (269514).

2^1001039 is an apocalyptic number.

1001039 is a deficient number, since it is larger than the sum of its proper divisors (77017).

1001039 is an equidigital number, since it uses as much as digits as its factorization.

1001039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77016.

The product of its (nonzero) digits is 27, while the sum is 14.

The square root of 1001039 is about 1000.5193651299. The cubic root of 1001039 is about 100.0346213456.

The spelling of 1001039 in words is "one million, one thousand, thirty-nine".