5081231 has 2 divisors, whose sum is σ = 5081232. Its totient is φ = 5081230.

The previous prime is 5081191. The next prime is 5081287. The reversal of 5081231 is 1321805.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5081231 is a prime.

It is a super-2 number, since 2×5081231² = 51637816950722, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5081291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2540615 + 2540616.

It is an arithmetic number, because the mean of its divisors is an integer number (2540616).

Almost surely, 2^5081231 is an apocalyptic number.

5081231 is a deficient number, since it is larger than the sum of its proper divisors (1).

5081231 is an equidigital number, since it uses as much as digits as its factorization.

5081231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 5081231 is about 2254.1586013411. The cubic root of 5081231 is about 171.9186450483.

It can be divided in two parts, 5081 and 231, that multiplied together give a palindrome (1173711).

The spelling of 5081231 in words is "five million, eighty-one thousand, two hundred thirty-one".