6180161 has 16 divisors (see below), whose sum is σ = 6997200. Its totient is φ = 5451264.

The previous prime is 6180157. The next prime is 6180179. The reversal of 6180161 is 1610816.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 4330561 + 1849600 = 2081^2 + 1360^2 .

It is not a de Polignac number, because 6180161 - 2² = 6180157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6180131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63665 + ... + 63761.

It is an arithmetic number, because the mean of its divisors is an integer number (437325).

Almost surely, 2^6180161 is an apocalyptic number.

It is an amenable number.

6180161 is a deficient number, since it is larger than the sum of its proper divisors (817039).

6180161 is an equidigital number, since it uses as much as digits as its factorization.

6180161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 6180161 is about 2485.9929605693. The cubic root of 6180161 is about 183.5128991816.

Adding to 6180161 its reverse (1610816), we get a palindrome (7790977).

The spelling of 6180161 in words is "six million, one hundred eighty thousand, one hundred sixty-one".