605145 has 8 divisors (see below), whose sum is σ = 968256. Its totient is φ = 322736.

The previous prime is 605123. The next prime is 605147. The reversal of 605145 is 541506.

It is a happy number.

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 605145 - 2⁵ = 605113 is a prime.

605145 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 605145.

It is not an unprimeable number, because it can be changed into a prime (605147) 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, 20157 + ... + 20186.

It is an arithmetic number, because the mean of its divisors is an integer number (121032).

2⁶⁰⁵¹⁴⁵ is an apocalyptic number.

It is an amenable number.

605145 is a deficient number, since it is larger than the sum of its proper divisors (363111).

605145 is a wasteful number, since it uses less digits than its factorization.

605145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40351.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 605145 is about 777.9106632513. The cubic root of 605145 is about 84.5836618741.

The spelling of 605145 in words is "six hundred five thousand, one hundred forty-five".