493163257 has 2 divisors, whose sum is σ = 493163258. Its totient is φ = 493163256.

The previous prime is 493163249. The next prime is 493163273. The reversal of 493163257 is 752361394.

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., 434472336 + 58690921 = 20844^2 + 7661^2 .

It is a cyclic number.

It is not a de Polignac number, because 493163257 - 2³ = 493163249 is a prime.

It is not a weakly prime, because it can be changed into another prime (493163207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246581628 + 246581629.

It is an arithmetic number, because the mean of its divisors is an integer number (246581629).

Almost surely, 2^493163257 is an apocalyptic number.

It is an amenable number.

493163257 is a deficient number, since it is larger than the sum of its proper divisors (1).

493163257 is an equidigital number, since it uses as much as digits as its factorization.

493163257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 40.

The square root of 493163257 is about 22207.2793696121. The cubic root of 493163257 is about 790.0663603925.

The spelling of 493163257 in words is "four hundred ninety-three million, one hundred sixty-three thousand, two hundred fifty-seven".