6531124349 has 2 divisors, whose sum is σ = 6531124350. Its totient is φ = 6531124348.

The previous prime is 6531124331. The next prime is 6531124381. The reversal of 6531124349 is 9434211356.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6489108025 + 42016324 = 80555^2 + 6482^2 .

It is a cyclic number.

It is not a de Polignac number, because 6531124349 - 2²⁸ = 6262688893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6531124399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3265562174 + 3265562175.

It is an arithmetic number, because the mean of its divisors is an integer number (3265562175).

Almost surely, 2^6531124349 is an apocalyptic number.

It is an amenable number.

6531124349 is a deficient number, since it is larger than the sum of its proper divisors (1).

6531124349 is an equidigital number, since it uses as much as digits as its factorization.

6531124349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 38.

The square root of 6531124349 is about 80815.3719845426. The cubic root of 6531124349 is about 1869.2296052577.

The spelling of 6531124349 in words is "six billion, five hundred thirty-one million, one hundred twenty-four thousand, three hundred forty-nine".