6381313 has 2 divisors, whose sum is σ = 6381314. Its totient is φ = 6381312.

The previous prime is 6381299. The next prime is 6381317. The reversal of 6381313 is 3131836.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4981824 + 1399489 = 2232^2 + 1183^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6381313 is a prime.

6381313 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (6381317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3190656 + 3190657.

It is an arithmetic number, because the mean of its divisors is an integer number (3190657).

Almost surely, 2^6381313 is an apocalyptic number.

It is an amenable number.

6381313 is a deficient number, since it is larger than the sum of its proper divisors (1).

6381313 is an equidigital number, since it uses as much as digits as its factorization.

6381313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 25.

The square root of 6381313 is about 2526.1260855310. The cubic root of 6381313 is about 185.4826743287.

The spelling of 6381313 in words is "six million, three hundred eighty-one thousand, three hundred thirteen".