4252681 has 2 divisors, whose sum is σ = 4252682. Its totient is φ = 4252680.

The previous prime is 4252679. The next prime is 4252709. The reversal of 4252681 is 1862524.

It is an a-pointer prime, because the next prime (4252709) can be obtained adding 4252681 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3644281 + 608400 = 1909^2 + 780^2 .

It is a cyclic number.

It is not a de Polignac number, because 4252681 - 2¹ = 4252679 is a prime.

It is a super-2 number, since 2×4252681² = 36170591375522, which contains 22 as substring.

Together with 4252679, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4252081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2126340 + 2126341.

It is an arithmetic number, because the mean of its divisors is an integer number (2126341).

Almost surely, 2^4252681 is an apocalyptic number.

It is an amenable number.

4252681 is a deficient number, since it is larger than the sum of its proper divisors (1).

4252681 is an equidigital number, since it uses as much as digits as its factorization.

4252681 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 4252681 is about 2062.2029483055. The cubic root of 4252681 is about 162.0146432935.

The spelling of 4252681 in words is "four million, two hundred fifty-two thousand, six hundred eighty-one".