493115251 has 2 divisors, whose sum is σ = 493115252. Its totient is φ = 493115250.

The previous prime is 493115213. The next prime is 493115297. The reversal of 493115251 is 152511394.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-493115251 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (493115851) 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, 246557625 + 246557626.

It is an arithmetic number, because the mean of its divisors is an integer number (246557626).

Almost surely, 2^493115251 is an apocalyptic number.

493115251 is a deficient number, since it is larger than the sum of its proper divisors (1).

493115251 is an equidigital number, since it uses as much as digits as its factorization.

493115251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 31.

The square root of 493115251 is about 22206.1984815051. The cubic root of 493115251 is about 790.0407237459.

The spelling of 493115251 in words is "four hundred ninety-three million, one hundred fifteen thousand, two hundred fifty-one".