5231231 has 4 divisors (see below), whose sum is σ = 5358864. Its totient is φ = 5103600.

The previous prime is 5231207. The next prime is 5231263. The reversal of 5231231 is 1321325.

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 5231231 - 2¹⁸ = 4969087 is a prime.

It is a super-2 number, since 2×5231231² = 54731555550722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5231131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63755 + ... + 63836.

It is an arithmetic number, because the mean of its divisors is an integer number (1339716).

Almost surely, 2^5231231 is an apocalyptic number.

5231231 is a deficient number, since it is larger than the sum of its proper divisors (127633).

5231231 is a wasteful number, since it uses less digits than its factorization.

5231231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127632.

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

The square root of 5231231 is about 2287.1884487291. The cubic root of 5231231 is about 173.5939689234.

Adding to 5231231 its reverse (1321325), we get a palindrome (6552556).

The spelling of 5231231 in words is "five million, two hundred thirty-one thousand, two hundred thirty-one".