6320138249 has 2 divisors, whose sum is σ = 6320138250. Its totient is φ = 6320138248.

The previous prime is 6320138219. The next prime is 6320138273. The reversal of 6320138249 is 9428310236.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5161416649 + 1158721600 = 71843^2 + 34040^2 .

It is a cyclic number.

It is not a de Polignac number, because 6320138249 - 2¹² = 6320134153 is a prime.

It is not a weakly prime, because it can be changed into another prime (6320138219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3160069124 + 3160069125.

It is an arithmetic number, because the mean of its divisors is an integer number (3160069125).

Almost surely, 2^6320138249 is an apocalyptic number.

It is an amenable number.

6320138249 is a deficient number, since it is larger than the sum of its proper divisors (1).

6320138249 is an equidigital number, since it uses as much as digits as its factorization.

6320138249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 6320138249 is about 79499.2971604152. The cubic root of 6320138249 is about 1848.8805742020.

The spelling of 6320138249 in words is "six billion, three hundred twenty million, one hundred thirty-eight thousand, two hundred forty-nine".