489101 has 2 divisors, whose sum is σ = 489102. Its totient is φ = 489100.

The previous prime is 489061. The next prime is 489109. The reversal of 489101 is 101984.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 249001 + 240100 = 499^2 + 490^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-489101 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244550 + 244551.

It is an arithmetic number, because the mean of its divisors is an integer number (244551).

2⁴⁸⁹¹⁰¹ is an apocalyptic number.

It is an amenable number.

489101 is a deficient number, since it is larger than the sum of its proper divisors (1).

489101 is an equidigital number, since it uses as much as digits as its factorization.

489101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 489101 is about 699.3575623385. The cubic root of 489101 is about 78.7891079794.

The spelling of 489101 in words is "four hundred eighty-nine thousand, one hundred one".