605161 has 4 divisors (see below), whose sum is σ = 607824. Its totient is φ = 602500.

The previous prime is 605147. The next prime is 605167. The reversal of 605161 is 161506.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 605161 - 2⁹ = 604649 is a prime.

It is a Duffinian number.

605161 is a lucky number.

It is a zygodrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (605167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 955 + ... + 1456.

It is an arithmetic number, because the mean of its divisors is an integer number (151956).

2⁶⁰⁵¹⁶¹ is an apocalyptic number.

It is an amenable number.

605161 is a deficient number, since it is larger than the sum of its proper divisors (2663).

605161 is a wasteful number, since it uses less digits than its factorization.

605161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2662.

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

The square root of 605161 is about 777.9209471405. The cubic root of 605161 is about 84.5844073300.

Adding to 605161 its reverse (161506), we get a palindrome (766667).

The spelling of 605161 in words is "six hundred five thousand, one hundred sixty-one".