145585 has 8 divisors (see below), whose sum is σ = 190656. Its totient is φ = 105840.

The previous prime is 145577. The next prime is 145589. The reversal of 145585 is 585541.

145585 = 110² + 111² + ... + 120².

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

It is not a de Polignac number, because 145585 - 2³ = 145577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145589) 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, 1269 + ... + 1378.

It is an arithmetic number, because the mean of its divisors is an integer number (23832).

2¹⁴⁵⁵⁸⁵ is an apocalyptic number.

It is an amenable number.

145585 is a deficient number, since it is larger than the sum of its proper divisors (45071).

145585 is a wasteful number, since it uses less digits than its factorization.

145585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2663.

The product of its digits is 4000, while the sum is 28.

The square root of 145585 is about 381.5560247198. The cubic root of 145585 is about 52.6064356219.

It can be divided in two parts, 1455 and 85, that added together give a triangular number (1540 = T₅₅).

The spelling of 145585 in words is "one hundred forty-five thousand, five hundred eighty-five".