4531321 has 2 divisors, whose sum is σ = 4531322. Its totient is φ = 4531320.

The previous prime is 4531313. The next prime is 4531327. The reversal of 4531321 is 1231354.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3748096 + 783225 = 1936^2 + 885^2 .

It is a cyclic number.

It is not a de Polignac number, because 4531321 - 2³ = 4531313 is a prime.

It is not a weakly prime, because it can be changed into another prime (4531327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2265660 + 2265661.

It is an arithmetic number, because the mean of its divisors is an integer number (2265661).

Almost surely, 2^4531321 is an apocalyptic number.

It is an amenable number.

4531321 is a deficient number, since it is larger than the sum of its proper divisors (1).

4531321 is an equidigital number, since it uses as much as digits as its factorization.

4531321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 360, while the sum is 19.

The square root of 4531321 is about 2128.6899727297. The cubic root of 4531321 is about 165.4785129840.

Adding to 4531321 its reverse (1231354), we get a palindrome (5762675).

The spelling of 4531321 in words is "four million, five hundred thirty-one thousand, three hundred twenty-one".