2458681 has 2 divisors, whose sum is σ = 2458682. Its totient is φ = 2458680.

The previous prime is 2458679. The next prime is 2458747. The reversal of 2458681 is 1868542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1946025 + 512656 = 1395^2 + 716^2 .

It is a cyclic number.

It is not a de Polignac number, because 2458681 - 2¹ = 2458679 is a prime.

It is a super-2 number, since 2×2458681² = 12090224519522, which contains 22 as substring.

Together with 2458679, it forms a pair of twin primes.

2458681 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2458601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1229340 + 1229341.

It is an arithmetic number, because the mean of its divisors is an integer number (1229341).

2^2458681 is an apocalyptic number.

It is an amenable number.

2458681 is a deficient number, since it is larger than the sum of its proper divisors (1).

2458681 is an equidigital number, since it uses as much as digits as its factorization.

2458681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15360, while the sum is 34.

The square root of 2458681 is about 1568.0181759151. The cubic root of 2458681 is about 134.9690098047.

The spelling of 2458681 in words is "two million, four hundred fifty-eight thousand, six hundred eighty-one".