5131249 has 2 divisors, whose sum is σ = 5131250. Its totient is φ = 5131248.

The previous prime is 5131237. The next prime is 5131253. The reversal of 5131249 is 9421315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5130225 + 1024 = 2265^2 + 32^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5131249 is a prime.

5131249 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (5131219) 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 as a sum of consecutive naturals, namely, 2565624 + 2565625.

It is an arithmetic number, because the mean of its divisors is an integer number (2565625).

Almost surely, 2^5131249 is an apocalyptic number.

It is an amenable number.

5131249 is a deficient number, since it is larger than the sum of its proper divisors (1).

5131249 is an equidigital number, since it uses as much as digits as its factorization.

5131249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 25.

The square root of 5131249 is about 2265.2260372863. The cubic root of 5131249 is about 172.4809080600.

The spelling of 5131249 in words is "five million, one hundred thirty-one thousand, two hundred forty-nine".