2748281 has 2 divisors, whose sum is σ = 2748282. Its totient is φ = 2748280.

The previous prime is 2748257. The next prime is 2748283. The reversal of 2748281 is 1828472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1666681 + 1081600 = 1291^2 + 1040^2 .

It is a cyclic number.

It is not a de Polignac number, because 2748281 - 2¹⁸ = 2486137 is a prime.

It is a super-2 number, since 2×2748281² = 15106096909922, which contains 22 as substring.

Together with 2748283, 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 (2748283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1374140 + 1374141.

It is an arithmetic number, because the mean of its divisors is an integer number (1374141).

2^2748281 is an apocalyptic number.

It is an amenable number.

2748281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2748281 is an equidigital number, since it uses as much as digits as its factorization.

2748281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7168, while the sum is 32.

The square root of 2748281 is about 1657.7940161552. The cubic root of 2748281 is about 140.0727682929.

The spelling of 2748281 in words is "two million, seven hundred forty-eight thousand, two hundred eighty-one".