491459029 has 2 divisors, whose sum is σ = 491459030. Its totient is φ = 491459028.

The previous prime is 491459021. The next prime is 491459039. The reversal of 491459029 is 920954194.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 299220804 + 192238225 = 17298^2 + 13865^2 .

It is a cyclic number.

It is not a de Polignac number, because 491459029 - 2³ = 491459021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (491459021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245729514 + 245729515.

It is an arithmetic number, because the mean of its divisors is an integer number (245729515).

Almost surely, 2^491459029 is an apocalyptic number.

It is an amenable number.

491459029 is a deficient number, since it is larger than the sum of its proper divisors (1).

491459029 is an equidigital number, since it uses as much as digits as its factorization.

491459029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 491459029 is about 22168.8752308276. The cubic root of 491459029 is about 789.1552306186.

The spelling of 491459029 in words is "four hundred ninety-one million, four hundred fifty-nine thousand, twenty-nine".