489151109 has 2 divisors, whose sum is σ = 489151110. Its totient is φ = 489151108.

The previous prime is 489151073. The next prime is 489151111. The reversal of 489151109 is 901151984.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 356832100 + 132319009 = 18890^2 + 11503^2 .

It is a cyclic number.

It is not a de Polignac number, because 489151109 - 2¹² = 489147013 is a prime.

It is a Sophie Germain prime.

Together with 489151111, it forms a pair of twin primes.

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 (489151129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244575554 + 244575555.

It is an arithmetic number, because the mean of its divisors is an integer number (244575555).

Almost surely, 2^489151109 is an apocalyptic number.

It is an amenable number.

489151109 is a deficient number, since it is larger than the sum of its proper divisors (1).

489151109 is an equidigital number, since it uses as much as digits as its factorization.

489151109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 38.

The square root of 489151109 is about 22116.7608161774. The cubic root of 489151109 is about 787.9179856796.

The spelling of 489151109 in words is "four hundred eighty-nine million, one hundred fifty-one thousand, one hundred nine".