6271381 has 2 divisors, whose sum is σ = 6271382. Its totient is φ = 6271380.

The previous prime is 6271379. The next prime is 6271403. The reversal of 6271381 is 1831726.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5616900 + 654481 = 2370^2 + 809^2 .

It is a cyclic number.

It is not a de Polignac number, because 6271381 - 2¹ = 6271379 is a prime.

It is a super-2 number, since 2×6271381² = 78660439294322, which contains 22 as substring.

Together with 6271379, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6271301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3135690 + 3135691.

It is an arithmetic number, because the mean of its divisors is an integer number (3135691).

Almost surely, 2^6271381 is an apocalyptic number.

It is an amenable number.

6271381 is a deficient number, since it is larger than the sum of its proper divisors (1).

6271381 is an equidigital number, since it uses as much as digits as its factorization.

6271381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 28.

The square root of 6271381 is about 2504.2725490649. The cubic root of 6271381 is about 184.4113846034.

The spelling of 6271381 in words is "six million, two hundred seventy-one thousand, three hundred eighty-one".