6320161 has 4 divisors (see below), whose sum is σ = 6336324. Its totient is φ = 6304000.

The previous prime is 6320159. The next prime is 6320189. The reversal of 6320161 is 1610236.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5475600 + 844561 = 2340^2 + 919^2 .

It is a cyclic number.

It is not a de Polignac number, because 6320161 - 2¹ = 6320159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6320131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7480 + ... + 8281.

It is an arithmetic number, because the mean of its divisors is an integer number (1584081).

Almost surely, 2^6320161 is an apocalyptic number.

It is an amenable number.

6320161 is a deficient number, since it is larger than the sum of its proper divisors (16163).

6320161 is a wasteful number, since it uses less digits than its factorization.

6320161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16162.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 6320161 is about 2513.9930389721. The cubic root of 6320161 is about 184.8882792710. Note that the first 3 decimals are identical.

Adding to 6320161 its reverse (1610236), we get a palindrome (7930397).

The spelling of 6320161 in words is "six million, three hundred twenty thousand, one hundred sixty-one".