6242581 has 2 divisors, whose sum is σ = 6242582. Its totient is φ = 6242580.

The previous prime is 6242573. The next prime is 6242597. The reversal of 6242581 is 1852426.

6242581 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., 5616900 + 625681 = 2370^2 + 791^2 .

It is a cyclic number.

It is not a de Polignac number, because 6242581 - 2³ = 6242573 is a prime.

It is a super-2 number, since 2×6242581² = 77939635083122, which contains 22 as substring.

6242581 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6242531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3121290 + 3121291.

It is an arithmetic number, because the mean of its divisors is an integer number (3121291).

Almost surely, 2^6242581 is an apocalyptic number.

It is an amenable number.

6242581 is a deficient number, since it is larger than the sum of its proper divisors (1).

6242581 is an equidigital number, since it uses as much as digits as its factorization.

6242581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3840, while the sum is 28.

The square root of 6242581 is about 2498.5157594060. The cubic root of 6242581 is about 184.1286611947.

The spelling of 6242581 in words is "six million, two hundred forty-two thousand, five hundred eighty-one".