1158039 has 12 divisors (see below), whose sum is σ = 1683136. Its totient is φ = 767232.

The previous prime is 1158037. The next prime is 1158071. The reversal of 1158039 is 9308511.

It is not a de Polignac number, because 1158039 - 2¹ = 1158037 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 (1158037) 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, 1719 + ... + 2295.

2^1158039 is an apocalyptic number.

1158039 is a deficient number, since it is larger than the sum of its proper divisors (525097).

1158039 is a wasteful number, since it uses less digits than its factorization.

1158039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806 (or 803 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 1158039 is about 1076.1222049563. The cubic root of 1158039 is about 105.0125155150.

The spelling of 1158039 in words is "one million, one hundred fifty-eight thousand, thirty-nine".