1485871209 has 15 divisors (see below), whose sum is σ = 2220153133. Its totient is φ = 990349524.

The previous prime is 1485871183. The next prime is 1485871241. The reversal of 1485871209 is 9021785841.

The square root of 1485871209 is 38547.

It is a perfect power (a square), and thus also a powerful number.

1485871209 is a `hidden beast` number, since 1 + 48 + 587 + 1 + 20 + 9 = 666.

It is not a de Polignac number, because 1485871209 - 2⁹ = 1485870697 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1485871259) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 344782 + ... + 349064.

Almost surely, 2^1485871209 is an apocalyptic number.

1485871209 is the 38547-th square number.

1485871209 is the 19274-th centered octagonal number.

It is an amenable number.

1485871209 is a deficient number, since it is larger than the sum of its proper divisors (734281924).

1485871209 is an frugal number, since it uses more digits than its factorization.

1485871209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8578 (or 4286 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The cubic root of 1485871209 is about 1141.1088034612.

The spelling of 1485871209 in words is "one billion, four hundred eighty-five million, eight hundred seventy-one thousand, two hundred nine".