491059 has 2 divisors, whose sum is σ = 491060. Its totient is φ = 491058.

The previous prime is 491041. The next prime is 491081. The reversal of 491059 is 950194.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 491059 - 2¹¹ = 489011 is a prime.

It is a super-2 number, since 2×491059² = 482277882962, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (491039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245529 + 245530.

It is an arithmetic number, because the mean of its divisors is an integer number (245530).

2⁴⁹¹⁰⁵⁹ is an apocalyptic number.

491059 is a deficient number, since it is larger than the sum of its proper divisors (1).

491059 is an equidigital number, since it uses as much as digits as its factorization.

491059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 491059 is about 700.7560203095. The cubic root of 491059 is about 78.8941058362.

The spelling of 491059 in words is "four hundred ninety-one thousand, fifty-nine".