5312231 has 2 divisors, whose sum is σ = 5312232. Its totient is φ = 5312230.

The previous prime is 5312227. The next prime is 5312233. The reversal of 5312231 is 1322135.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5312231 - 2² = 5312227 is a prime.

It is a super-2 number, since 2×5312231² = 56439596394722, which contains 22 as substring.

Together with 5312233, 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 (5312233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2656115 + 2656116.

It is an arithmetic number, because the mean of its divisors is an integer number (2656116).

Almost surely, 2^5312231 is an apocalyptic number.

5312231 is a deficient number, since it is larger than the sum of its proper divisors (1).

5312231 is an equidigital number, since it uses as much as digits as its factorization.

5312231 is an evil number, because the sum of its binary digits is even.

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

The square root of 5312231 is about 2304.8277592914. The cubic root of 5312231 is about 174.4853560342.

Adding to 5312231 its reverse (1322135), we get a palindrome (6634366).

The spelling of 5312231 in words is "five million, three hundred twelve thousand, two hundred thirty-one".