489493541 has 2 divisors, whose sum is σ = 489493542. Its totient is φ = 489493540.

The previous prime is 489493517. The next prime is 489493577. The reversal of 489493541 is 145394984.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 451732516 + 37761025 = 21254^2 + 6145^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-489493541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489493591) 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, 244746770 + 244746771.

It is an arithmetic number, because the mean of its divisors is an integer number (244746771).

Almost surely, 2^489493541 is an apocalyptic number.

It is an amenable number.

489493541 is a deficient number, since it is larger than the sum of its proper divisors (1).

489493541 is an equidigital number, since it uses as much as digits as its factorization.

489493541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 47.

The square root of 489493541 is about 22124.5009209247. The cubic root of 489493541 is about 788.1018044022.

The spelling of 489493541 in words is "four hundred eighty-nine million, four hundred ninety-three thousand, five hundred forty-one".