494751001 has 2 divisors, whose sum is σ = 494751002. Its totient is φ = 494751000.

The previous prime is 494750989. The next prime is 494751007. The reversal of 494751001 is 100157494.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 404975376 + 89775625 = 20124^2 + 9475^2 .

It is a cyclic number.

It is not a de Polignac number, because 494751001 - 2⁵ = 494750969 is a prime.

It is not a weakly prime, because it can be changed into another prime (494751007) 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, 247375500 + 247375501.

It is an arithmetic number, because the mean of its divisors is an integer number (247375501).

Almost surely, 2^494751001 is an apocalyptic number.

It is an amenable number.

494751001 is a deficient number, since it is larger than the sum of its proper divisors (1).

494751001 is an equidigital number, since it uses as much as digits as its factorization.

494751001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 494751001 is about 22242.9989210088. The cubic root of 494751001 is about 790.9133275979.

The spelling of 494751001 in words is "four hundred ninety-four million, seven hundred fifty-one thousand, one".