6532381 has 2 divisors, whose sum is σ = 6532382. Its totient is φ = 6532380.

The previous prime is 6532367. The next prime is 6532397. The reversal of 6532381 is 1832356.

6532381 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6528025 + 4356 = 2555^2 + 66^2 .

It is a cyclic number.

It is not a de Polignac number, because 6532381 - 2¹¹ = 6530333 is a prime.

It is a super-2 number, since 2×6532381² = 85344003058322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6532081) 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, 3266190 + 3266191.

It is an arithmetic number, because the mean of its divisors is an integer number (3266191).

Almost surely, 2^6532381 is an apocalyptic number.

It is an amenable number.

6532381 is a deficient number, since it is larger than the sum of its proper divisors (1).

6532381 is an equidigital number, since it uses as much as digits as its factorization.

6532381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 28.

The square root of 6532381 is about 2555.8523040270. The cubic root of 6532381 is about 186.9349483474.

The spelling of 6532381 in words is "six million, five hundred thirty-two thousand, three hundred eighty-one".