2718281 has 2 divisors, whose sum is σ = 2718282. Its totient is φ = 2718280.

The previous prime is 2718277. The next prime is 2718293. The reversal of 2718281 is 1828172.

2718281 is digitally balanced in base 2, 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., 1488400 + 1229881 = 1220^2 + 1109^2 .

It is a cyclic number.

It is not a de Polignac number, because 2718281 - 2² = 2718277 is a prime.

It is a super-2 number, since 2×2718281² = 14778103189922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2718241) 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, 1359140 + 1359141.

It is an arithmetic number, because the mean of its divisors is an integer number (1359141).

2^2718281 is an apocalyptic number.

It is an amenable number.

2718281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2718281 is an equidigital number, since it uses as much as digits as its factorization.

2718281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1792, while the sum is 29.

The square root of 2718281 is about 1648.7210194572. The cubic root of 2718281 is about 139.5612283304.

The spelling of 2718281 in words is "two million, seven hundred eighteen thousand, two hundred eighty-one".