489156521 has 16 divisors (see below), whose sum is σ = 594607104. Its totient is φ = 392822784.

The previous prime is 489156467. The next prime is 489156523. The reversal of 489156521 is 125651984.

It is a cyclic number.

It is not a de Polignac number, because 489156521 - 2⁶ = 489156457 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (489156523) 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 in 15 ways as a sum of consecutive naturals, for example, 17321 + ... + 35753.

It is an arithmetic number, because the mean of its divisors is an integer number (37162944).

Almost surely, 2^489156521 is an apocalyptic number.

It is an amenable number.

489156521 is a deficient number, since it is larger than the sum of its proper divisors (105450583).

489156521 is a wasteful number, since it uses less digits than its factorization.

489156521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18680.

The product of its digits is 86400, while the sum is 41.

The square root of 489156521 is about 22116.8831664862. The cubic root of 489156521 is about 787.9208915276.

The spelling of 489156521 in words is "four hundred eighty-nine million, one hundred fifty-six thousand, five hundred twenty-one".