494845513 has 2 divisors, whose sum is σ = 494845514. Its totient is φ = 494845512.

The previous prime is 494845499. The next prime is 494845553. The reversal of 494845513 is 315548494.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 258823744 + 236021769 = 16088^2 + 15363^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-494845513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 494845513.

It is not a weakly prime, because it can be changed into another prime (494845553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247422756 + 247422757.

It is an arithmetic number, because the mean of its divisors is an integer number (247422757).

Almost surely, 2^494845513 is an apocalyptic number.

It is an amenable number.

494845513 is a deficient number, since it is larger than the sum of its proper divisors (1).

494845513 is an equidigital number, since it uses as much as digits as its factorization.

494845513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 345600, while the sum is 43.

The square root of 494845513 is about 22245.1233532206. The cubic root of 494845513 is about 790.9636869645.

The spelling of 494845513 in words is "four hundred ninety-four million, eight hundred forty-five thousand, five hundred thirteen".