1145585 has 16 divisors (see below), whose sum is σ = 1596672. Its totient is φ = 772800.

The previous prime is 1145539. The next prime is 1145593. The reversal of 1145585 is 5855411.

It is not a de Polignac number, because 1145585 - 2⁸ = 1145329 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2255 + ... + 2715.

It is an arithmetic number, because the mean of its divisors is an integer number (99792).

2^1145585 is an apocalyptic number.

It is an amenable number.

1145585 is a deficient number, since it is larger than the sum of its proper divisors (451087).

1145585 is an equidigital number, since it uses as much as digits as its factorization.

1145585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544.

The product of its digits is 4000, while the sum is 29.

The square root of 1145585 is about 1070.3200455938. The cubic root of 1145585 is about 104.6347094796.

The spelling of 1145585 in words is "one million, one hundred forty-five thousand, five hundred eighty-five".