489155071 has 2 divisors, whose sum is σ = 489155072. Its totient is φ = 489155070.

The previous prime is 489155063. The next prime is 489155087. The reversal of 489155071 is 170551984.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 489155071 - 2³ = 489155063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489155041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244577535 + 244577536.

It is an arithmetic number, because the mean of its divisors is an integer number (244577536).

Almost surely, 2^489155071 is an apocalyptic number.

489155071 is a deficient number, since it is larger than the sum of its proper divisors (1).

489155071 is an equidigital number, since it uses as much as digits as its factorization.

489155071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 40.

The square root of 489155071 is about 22116.8503860744. The cubic root of 489155071 is about 787.9201129858.

The spelling of 489155071 in words is "four hundred eighty-nine million, one hundred fifty-five thousand, seventy-one".