165084489 has 12 divisors (see below), whose sum is σ = 239775172. Its totient is φ = 109447200.

The previous prime is 165084473. The next prime is 165084499. The reversal of 165084489 is 984480561.

165084489 is a `hidden beast` number, since 165 + 0 + 8 + 4 + 489 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 67371264 + 97713225 = 8208^2 + 9885^2 .

It is not a de Polignac number, because 165084489 - 2⁴ = 165084473 is a prime.

It is a super-2 number, since 2×165084489² = 54505777016782242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165084499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49042 + ... + 52299.

Almost surely, 2^165084489 is an apocalyptic number.

It is an amenable number.

165084489 is a deficient number, since it is larger than the sum of its proper divisors (74690683).

165084489 is a wasteful number, since it uses less digits than its factorization.

165084489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101528 (or 101525 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 165084489 is about 12848.5208876353. The cubic root of 165084489 is about 548.5742566063.

The spelling of 165084489 in words is "one hundred sixty-five million, eighty-four thousand, four hundred eighty-nine".