5211231 has 8 divisors (see below), whose sum is σ = 7357104. Its totient is φ = 3269760.

The previous prime is 5211229. The next prime is 5211233. The reversal of 5211231 is 1321125.

It is an interprime number because it is at equal distance from previous prime (5211229) and next prime (5211233).

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

It is not a de Polignac number, because 5211231 - 2¹ = 5211229 is a prime.

It is a super-2 number, since 2×5211231² = 54313857070722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5211231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5211233) 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 in 7 ways as a sum of consecutive naturals, for example, 51040 + ... + 51141.

It is an arithmetic number, because the mean of its divisors is an integer number (919638).

Almost surely, 2^5211231 is an apocalyptic number.

5211231 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

5211231 is a deficient number, since it is larger than the sum of its proper divisors (2145873).

5211231 is a wasteful number, since it uses less digits than its factorization.

5211231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102201.

The product of its digits is 60, while the sum is 15.

The square root of 5211231 is about 2282.8120816221. The cubic root of 5211231 is about 173.3724587056.

Adding to 5211231 its reverse (1321125), we get a palindrome (6532356).

The spelling of 5211231 in words is "five million, two hundred eleven thousand, two hundred thirty-one".