1139585 has 8 divisors (see below), whose sum is σ = 1391040. Its totient is φ = 895984.

The previous prime is 1139573. The next prime is 1139587. The reversal of 1139585 is 5859311.

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

It is a cyclic number.

It is not a de Polignac number, because 1139585 - 2⁶ = 1139521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1139587) 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, 1637 + ... + 2226.

It is an arithmetic number, because the mean of its divisors is an integer number (173880).

2^1139585 is an apocalyptic number.

It is an amenable number.

1139585 is a deficient number, since it is larger than the sum of its proper divisors (251455).

1139585 is an equidigital number, since it uses as much as digits as its factorization.

1139585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3927.

The product of its digits is 5400, while the sum is 32.

The square root of 1139585 is about 1067.5134659572. The cubic root of 1139585 is about 104.4517149089.

The spelling of 1139585 in words is "one million, one hundred thirty-nine thousand, five hundred eighty-five".