9145 has 8 divisors (see below), whose sum is σ = 11520. Its totient is φ = 6960.

The previous prime is 9137. The next prime is 9151. The reversal of 9145 is 5419.

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

It is not a de Polignac number, because 9145 - 2³ = 9137 is a prime.

9145 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126 + ... + 184.

It is an arithmetic number, because the mean of its divisors is an integer number (1440).

2⁹¹⁴⁵ is an apocalyptic number.

It is an amenable number.

9145 is a deficient number, since it is larger than the sum of its proper divisors (2375).

9145 is a wasteful number, since it uses less digits than its factorization.

9145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95.

The product of its digits is 180, while the sum is 19.

The square root of 9145 is about 95.6294933585. The cubic root of 9145 is about 20.9119518340.

Multiplying 9145 by its sum of digits (19), we get a triangular number (173755 = T₅₈₉).

It can be divided in two parts, 914 and 5, that added together give a palindrome (919).

The spelling of 9145 in words is "nine thousand, one hundred forty-five".