494058221 has 2 divisors, whose sum is σ = 494058222. Its totient is φ = 494058220.

The previous prime is 494058167. The next prime is 494058263. The reversal of 494058221 is 122850494.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 465049225 + 29008996 = 21565^2 + 5386^2 .

It is a cyclic number.

It is not a de Polignac number, because 494058221 - 2¹⁴ = 494041837 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (494058281) 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, 247029110 + 247029111.

It is an arithmetic number, because the mean of its divisors is an integer number (247029111).

Almost surely, 2^494058221 is an apocalyptic number.

It is an amenable number.

494058221 is a deficient number, since it is larger than the sum of its proper divisors (1).

494058221 is an equidigital number, since it uses as much as digits as its factorization.

494058221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 494058221 is about 22227.4204756197. The cubic root of 494058221 is about 790.5439937440.

The spelling of 494058221 in words is "four hundred ninety-four million, fifty-eight thousand, two hundred twenty-one".