5213231 has 2 divisors, whose sum is σ = 5213232. Its totient is φ = 5213230.

The previous prime is 5213213. The next prime is 5213233. The reversal of 5213231 is 1323125.

Together with previous prime (5213213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5213231 is a prime.

It is a super-2 number, since 2×5213231² = 54355554918722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 5213233, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5213233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2606615 + 2606616.

It is an arithmetic number, because the mean of its divisors is an integer number (2606616).

Almost surely, 2^5213231 is an apocalyptic number.

5213231 is a deficient number, since it is larger than the sum of its proper divisors (1).

5213231 is an equidigital number, since it uses as much as digits as its factorization.

5213231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 180, while the sum is 17.

The square root of 5213231 is about 2283.2500958064. The cubic root of 5213231 is about 173.3946352041.

Adding to 5213231 its reverse (1323125), we get a palindrome (6536356).

The spelling of 5213231 in words is "five million, two hundred thirteen thousand, two hundred thirty-one".