1165389 has 8 divisors (see below), whose sum is σ = 1596000. Its totient is φ = 755856.

The previous prime is 1165379. The next prime is 1165397. The reversal of 1165389 is 9835611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1165389 - 2⁵ = 1165357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5139 + ... + 5360.

It is an arithmetic number, because the mean of its divisors is an integer number (199500).

2^1165389 is an apocalyptic number.

It is an amenable number.

1165389 is a deficient number, since it is larger than the sum of its proper divisors (430611).

1165389 is a wasteful number, since it uses less digits than its factorization.

1165389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10539.

The product of its digits is 6480, while the sum is 33.

The square root of 1165389 is about 1079.5318429764. The cubic root of 1165389 is about 105.2342163899.

The spelling of 1165389 in words is "one million, one hundred sixty-five thousand, three hundred eighty-nine".