1489055985 has 12 divisors (see below), whose sum is σ = 2581030452. Its totient is φ = 794163168.

The previous prime is 1489055969. The next prime is 1489055989. The reversal of 1489055985 is 5895509841.

1489055985 is a `hidden beast` number, since 1 + 4 + 8 + 9 + 0 + 559 + 85 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 701243361 + 787812624 = 26481^2 + 28068^2 .

It is not a de Polignac number, because 1489055985 - 2⁴ = 1489055969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1489055989) 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 in 11 ways as a sum of consecutive naturals, for example, 16545022 + ... + 16545111.

It is an arithmetic number, because the mean of its divisors is an integer number (215085871).

Almost surely, 2^1489055985 is an apocalyptic number.

1489055985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1489055985 is a deficient number, since it is larger than the sum of its proper divisors (1091974467).

1489055985 is a wasteful number, since it uses less digits than its factorization.

1489055985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33090144 (or 33090141 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 54.

The square root of 1489055985 is about 38588.2881843701. The cubic root of 1489055985 is about 1141.9234955492.

The spelling of 1489055985 in words is "one billion, four hundred eighty-nine million, fifty-five thousand, nine hundred eighty-five".