5215231 has 4 divisors (see below), whose sum is σ = 5960272. Its totient is φ = 4470192.

The previous prime is 5215229. The next prime is 5215247. The reversal of 5215231 is 1325125.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5215231 - 2¹ = 5215229 is a prime.

It is a super-2 number, since 2×5215231² = 54397268766722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5215199 and 5215208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5215201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 372510 + ... + 372523.

It is an arithmetic number, because the mean of its divisors is an integer number (1490068).

Almost surely, 2^5215231 is an apocalyptic number.

5215231 is a deficient number, since it is larger than the sum of its proper divisors (745041).

5215231 is an equidigital number, since it uses as much as digits as its factorization.

5215231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745040.

The product of its digits is 300, while the sum is 19.

The square root of 5215231 is about 2283.6880259790. The cubic root of 5215231 is about 173.4168060314.

The spelling of 5215231 in words is "five million, two hundred fifteen thousand, two hundred thirty-one".