494310281 has 2 divisors, whose sum is σ = 494310282. Its totient is φ = 494310280.

The previous prime is 494310253. The next prime is 494310329. The reversal of 494310281 is 182013494.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 445589881 + 48720400 = 21109^2 + 6980^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-494310281 is a prime.

It is a super-2 number, since 2×494310281² = 488685307804597922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (494310211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247155140 + 247155141.

It is an arithmetic number, because the mean of its divisors is an integer number (247155141).

Almost surely, 2^494310281 is an apocalyptic number.

It is an amenable number.

494310281 is a deficient number, since it is larger than the sum of its proper divisors (1).

494310281 is an equidigital number, since it uses as much as digits as its factorization.

494310281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 494310281 is about 22233.0897762772. The cubic root of 494310281 is about 790.6784115333.

The spelling of 494310281 in words is "four hundred ninety-four million, three hundred ten thousand, two hundred eighty-one".