6160221 has 6 divisors (see below), whose sum is σ = 8898110. Its totient is φ = 4106808.

The previous prime is 6160211. The next prime is 6160229. The reversal of 6160221 is 1220616.

It is a happy number.

6160221 is a `hidden beast` number, since 61 + 602 + 2 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6125625 + 34596 = 2475^2 + 186^2 .

It is not a de Polignac number, because 6160221 - 2⁶ = 6160157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6160194 and 6160203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6160229) 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, 342226 + ... + 342243.

Almost surely, 2^6160221 is an apocalyptic number.

It is an amenable number.

6160221 is a deficient number, since it is larger than the sum of its proper divisors (2737889).

6160221 is a wasteful number, since it uses less digits than its factorization.

6160221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684475 (or 684472 counting only the distinct ones).

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

The square root of 6160221 is about 2481.9792505176. The cubic root of 6160221 is about 183.3153212791.

Adding to 6160221 its reverse (1220616), we get a palindrome (7380837).

The spelling of 6160221 in words is "six million, one hundred sixty thousand, two hundred twenty-one".