4561321 has 8 divisors (see below), whose sum is σ = 4863240. Its totient is φ = 4263168.

The previous prime is 4561307. The next prime is 4561327. The reversal of 4561321 is 1231654.

It can be written as a sum of positive squares in 4 ways, for example, as 313600 + 4247721 = 560^2 + 2061^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4561321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4561292 and 4561301.

It is not an unprimeable number, because it can be changed into a prime (4561327) 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 7 ways as a sum of consecutive naturals, for example, 1815 + ... + 3523.

It is an arithmetic number, because the mean of its divisors is an integer number (607905).

Almost surely, 2^4561321 is an apocalyptic number.

It is an amenable number.

4561321 is a deficient number, since it is larger than the sum of its proper divisors (301919).

4561321 is a wasteful number, since it uses less digits than its factorization.

4561321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1883.

The product of its digits is 720, while the sum is 22.

The square root of 4561321 is about 2135.7249354727. The cubic root of 4561321 is about 165.8428982528.

Adding to 4561321 its reverse (1231654), we get a palindrome (5792975).

The spelling of 4561321 in words is "four million, five hundred sixty-one thousand, three hundred twenty-one".