604161 has 6 divisors (see below), whose sum is σ = 872690. Its totient is φ = 402768.

The previous prime is 604073. The next prime is 604171. The reversal of 604161 is 161406.

604161 is a `hidden beast` number, since 604 + 1 + 61 = 666.

It can be written as a sum of positive squares in only one way, i.e., 553536 + 50625 = 744^2 + 225^2 .

It is not a de Polignac number, because 604161 - 2¹⁷ = 473089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (604171) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33556 + ... + 33573.

It is a Proth number, since it is equal to 295 ⋅ 2¹¹ + 1 and 295 < 2¹¹.

2⁶⁰⁴¹⁶¹ is an apocalyptic number.

It is an amenable number.

604161 is a deficient number, since it is larger than the sum of its proper divisors (268529).

604161 is a wasteful number, since it uses less digits than its factorization.

604161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67135 (or 67132 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 604161 is about 777.2779425662. The cubic root of 604161 is about 84.5377910627.

Adding to 604161 its reverse (161406), we get a palindrome (765567).

The spelling of 604161 in words is "six hundred four thousand, one hundred sixty-one".