2248681 has 2 divisors, whose sum is σ = 2248682. Its totient is φ = 2248680.

The previous prime is 2248679. The next prime is 2248691. The reversal of 2248681 is 1868422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2223081 + 25600 = 1491^2 + 160^2 .

It is a cyclic number.

It is not a de Polignac number, because 2248681 - 2¹ = 2248679 is a prime.

It is a super-2 number, since 2×2248681² = 10113132479522, which contains 22 as substring.

Together with 2248679, it forms a pair of twin primes.

2248681 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2248651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1124340 + 1124341.

It is an arithmetic number, because the mean of its divisors is an integer number (1124341).

2^2248681 is an apocalyptic number.

It is an amenable number.

2248681 is a deficient number, since it is larger than the sum of its proper divisors (1).

2248681 is an equidigital number, since it uses as much as digits as its factorization.

2248681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6144, while the sum is 31.

The square root of 2248681 is about 1499.5602688788. The cubic root of 2248681 is about 131.0114590912.

The spelling of 2248681 in words is "two million, two hundred forty-eight thousand, six hundred eighty-one".