1139165 has 8 divisors (see below), whose sum is σ = 1386168. Its totient is φ = 898560.

The previous prime is 1139147. The next prime is 1139191. The reversal of 1139165 is 5619311.

It can be written as a sum of positive squares in 4 ways, for example, as 676 + 1138489 = 26^2 + 1067^2 .

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

It is not a de Polignac number, because 1139165 - 2¹⁰ = 1138141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1196 + ... + 1925.

It is an arithmetic number, because the mean of its divisors is an integer number (173271).

2^1139165 is an apocalyptic number.

It is an amenable number.

1139165 is a deficient number, since it is larger than the sum of its proper divisors (247003).

1139165 is an equidigital number, since it uses as much as digits as its factorization.

1139165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3199.

The product of its digits is 810, while the sum is 26.

The square root of 1139165 is about 1067.3167289985. The cubic root of 1139165 is about 104.4388812573.

The spelling of 1139165 in words is "one million, one hundred thirty-nine thousand, one hundred sixty-five".