748268281 has 2 divisors, whose sum is σ = 748268282. Its totient is φ = 748268280.

The previous prime is 748268239. The next prime is 748268291. The reversal of 748268281 is 182862847.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 661312656 + 86955625 = 25716^2 + 9325^2 .

It is a cyclic number.

It is not a de Polignac number, because 748268281 - 2⁹ = 748267769 is a prime.

It is a super-2 number, since 2×748268281² = 1119810840701389922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (748268231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374134140 + 374134141.

It is an arithmetic number, because the mean of its divisors is an integer number (374134141).

Almost surely, 2^748268281 is an apocalyptic number.

It is an amenable number.

748268281 is a deficient number, since it is larger than the sum of its proper divisors (1).

748268281 is an equidigital number, since it uses as much as digits as its factorization.

748268281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 344064, while the sum is 46.

The square root of 748268281 is about 27354.4928850820. The cubic root of 748268281 is about 907.8604814679.

The spelling of 748268281 in words is "seven hundred forty-eight million, two hundred sixty-eight thousand, two hundred eighty-one".