4531213 has 2 divisors, whose sum is σ = 4531214. Its totient is φ = 4531212.

The previous prime is 4531199. The next prime is 4531217. The reversal of 4531213 is 3121354.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3143529 + 1387684 = 1773^2 + 1178^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4531213 is a prime.

4531213 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4531217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2265606 + 2265607.

It is an arithmetic number, because the mean of its divisors is an integer number (2265607).

Almost surely, 2^4531213 is an apocalyptic number.

It is an amenable number.

4531213 is a deficient number, since it is larger than the sum of its proper divisors (1).

4531213 is an equidigital number, since it uses as much as digits as its factorization.

4531213 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 4531213 is about 2128.6646048638. The cubic root of 4531213 is about 165.4771982959.

Adding to 4531213 its reverse (3121354), we get a palindrome (7652567).

The spelling of 4531213 in words is "four million, five hundred thirty-one thousand, two hundred thirteen".